Tag: Books

Interview with the authors of The Little Owl

The Little Owl, Athene noctua, is one of the most well-studied species of owl. Despite being widespread across Europe, Asia and North Africa, populations are now in decline, making studies of its behaviour and ecology all the more important. The revised second edition of The Little Owl, which vastly expands on the original, published in 2011, covers everything you could wish to know about the species. From its history, taxonomy and genetics, to details of its habits, diet and breeding, the wide-ranging text consolidates all of the current available knowledge, obtained both from the author’s personal experience and research, as well as scientific and conservation literature.

The authors, Dries van Nieuwenhuyse, Ronald van Harxen and David H Johnson generously gave up some of their time to answer our questions about the book, the issues currently affecting Little Owls globally, and their hopes for the future of this captivating species. The Q&A is also illustrated with some of the beautiful images from the book, all of which were created by scientific illustrator and graphic designer Joris De Raedt.

Firstly, can you tell us a little bit about yourselves and the work you are currently involved in?

Dries is a life-long owl researcher and statistician active in ecological method development and publication. He has authored five books on the impact of technology and statistics on the decision-making processes of organisations, and in particular brings his skills as a statistician to his ornithological work.

Ronald is Chairman of the Dutch Little Owl Working Group (STONE), and has been active in research on breeding biology and population dynamics within nest box populations and conservation of the Little Owl in the Netherlands and internationally for more than four decades.

David is Executive Director at Global Owl Project, USA and working since more than a decade on a demographic study of the Burrowing Owl (Athene cunicularia). He has worked in natural resource conservation for four decades and has written two previous books on owls, wildlife and fisheries.

Joris De Raedt is scientific illustrator and graphic designer
visualising the wonders of the natural world. He illustrated the book through a combination of graphite sketches and digital illustrations. Color and details are added on the computer using a graphic tablet. More on his workflow at jorisderaedt.com.

For anyone that enjoyed reading the first version of The Little Owl which was published in 2011, what new things can they expect to discover in this updated second edition?

The subtitle of the first edition was Conservation, Ecology and Behavior, the second edition paid special attention to Taxonomy, Population Dynamics and Management. Major improvements are the illustrations that were all created by Joris De Raedt. This allowed us to make compilations of photos of the subspecies and their habitats to obtain extremely detailed and standardised artistic plates. The fact that this edition is in colour allowed excellent drawings of the embryonic development, the evolution of nestlings in function of age and high quality distribution maps by country and globally. The global distribution map was revised with much more accurate data than even before, thanks to the internet and technological advances.

Plenty of new insights were brought in by Ronald on breeding biology, prey items and behaviour in nestboxes that were equipped with webcams. Photos led to video, and that led to online webcam data that was tagged with time, prey species and specific behavior by volunteers.

The final major evolution was the intensification of replicated experiments since the first edition. Crucial questions on the yellowness of the beak of the female in relation to breeding performance and feeding preference of female nestlings by females, and also in relation to the yellowness of the beaks of the offspring, led to major breakthroughs in our knowledge. Due to the publication of the first edition, the start of a pdf and citizen science website for data collection improved the international cooperation tremendously and facilitated access to international data bases of ringing data, geocoded pictures and vocalisations.

Historically the Little Owl has suffered due to intensive agriculture practices and abundant use of pesticides. Are Little Owls still widely affected by these issues, and do we yet have a clear idea of how they are likely to be impacted with the additional challenges posed by the climate crisis?

Little Owls are ambassadors of small-scale landscapes. In some countries they disappear due to intensification of the agriculture, while in other countries they disappear when farming is halted (grazing cattle disappear) and after forestation. Climate change is expected to have a positive impact on the species in the north and the east due to less snow cover. Increasing heavy rain during the breeding season, on the other hand, will probably have a negative impact on breeding success. Increase in desertification might not be an issue, as this typical Mediterranean species can even be found in the Sahara and the Arabian Peninsula. In Europe, most negative impacts comes from agricultural intensification, with an increase in maize leading to less grassland, increase in pesticides and rodenticides, increase in scale of the landscape with fewer parcel borders, fences or shrubs.

An important part of the book deals with management techniques that have proven to work over the long term. Reintroducing short grassy vegetation with commanding perches and provision of nestboxes can significantly help Little Owls to cope with modern agriculture. If conservation is started timely enough, this simple management can help preserve healthy populations. When densities drop too low, this might not be sufficient and, in combination with a lack of food, can lead to local extinctions.

What are the key ways in which Little Owls are surveyed? And how comprehensive is our knowledge of where they occur and their current population sizes?

The species is excellent for research due to its easy response to playback of vocalisations, historically mostly undertaken in western Europe but recently increasing in eastern Europe. Monitoring efforts have continued since the 1980s and offer a good view on population numbers. This has led to extra research on the possible impact of habitat deterioration, food availability and the increase of Stone Marten and Tawny Owls as possible limiting factors.

Since the first edition plenty of new local and large scale atlases have been published leading to a very detailed knowledge on the distribution and population numbers in Europe. The new EBCC atlas has distribution data at the 50 by 50km level, the 27 EU member states monitor Little Owl presence at the 10 by 10km level, and a number of local atlases have data available at the 1 by 1 km level.

Outside of Europe, the species is rather common but distribution knowledge remains anecdotal with population estimates largely based on local average densities and, in rare cases, on habitat modelling. More insights emerged from North Africa and the East (eg Iran and Pakistan) but much more work is still needed outside Europe. Hopefully this book can boost research in less well-studied countries, as many methods that have proven to be working simply need to be replicated elsewhere.

How effective have captive breeding and reintroduction projects been for the Little Owl so far? And is this approach likely to be an important one for their future conservation?

Not very effective. Some initiatives have been undertaken but with moderate outcomes. Reintroduction remains an emergency brake that rarely works. Supplemental feeding, provision of nestboxes and landscape improvements are much more effective, particularly when they are started in a timely manner. The key is not to wait too long before starting with small-scale management and to keep healthy populations, even in areas with intensive agriculture.

How likely are Little Owls to utilise artificial nestboxes?

Very likely, and this makes The Little Owl one of the best and easiest models for biological and conservation research. The ease of installing nestboxes with webcams and with predator protection allows data to be collected in an unprecedented manner, without special tools or tedious field work. People can observe the species seated at their kitchen table, youngsters can easily be involved in playback monitoring, nestbox maintenance and food supplementation, which eventually leads to experiments and dedicated citizen science. This make the species so special.

Finally, what’s next for you? Are there new books on the horizon?

Sure, Ronald and Dries will publish a non-scientific version of the book in Dutch for the 2000+ local volunteers to thank them for their tremendous help in collecting and digitising Little Owl data through conservation, management and ringing. David and Dries are currently preparing a similar book on the close relative of the Little Owl, the Burrowing Owl. Finally, Ronald is currently working on a book on all owl species that can be found in The Netherlands. We’ve still got some work to do.

The Little Owl by Dries van Nieuwenhuyse, Ronald van Harxen and David H. Johnson was published by Cambridge University Press in October 2023 and is available from nhbs.com.

Author Q&A with Dominic Couzens and Gail Ashton: An Identification Guide to Trees of Britain and North-West Europe

An Identification Guide to Trees of Britain and North-West Europe is a fantastic new guide to 89 of the most commonly found and easily recognised trees in the region. Suitable for everyone, from the complete novice to the experienced naturalist, the book contains lively and interesting text from Dominic Couzens, complemented by Gail Ashton’s photographs. These show details of each species throughout the seasons as well as features that are useful for identification.

Dominic Couzens is a bird expert, nature writer and the author of over 40 books. He is also a regular print columnist and writes for Bird Watching Magazine, Nature’s Home (RSPB) and Water Life (WWT). He is passionate about communicating about the natural world  and has a particular passion for writing about current threats to the planet and how they can be best addressed.

Gail Ashton is a photographer and writer with a passion for wildlife and invertebrates in particular. Well known for an incredible project where she undertook to photograph 500 UK invertebrates over the course of a year, she is passionate about encouraging everyone, young or old, to observe and appreciate the natural world.

We recently got to the chance to ask Dominic and Gail some questions about the book; about the process of compiling such a guide, the most fascinating things they learned in the process and their concerns for the future of trees in Britain and further afield.

Firstly, can you tell us a little bit about yourselves and how you came to be working together in writing this book?

DC: I am an experienced writer of natural history books and I’ve written a number of field guides, both to birds and mammals. However, in 2021 I came across Gail’s remarkable project to photograph 500 species of invertebrates in a single year. Her fabulous library was the perfect material for an insect guide, so we published An Identification Guide to Garden Insects in 2022. The project was a great success so here we are.

GA: I have always loved nature and one of my favourite ways to be outdoors is in woodland and forest. Studying insects brought me a new layer of fascination for trees as I found out just how many other organisms they support, and just how complex they are. Trees came on the back of the very-well received ‘Garden Insects’, and follows the same, beautiful format and layout.

There are numerous books available on tree identification. What do you think sets your book apart from other ID guides of its kind?

GA: Yes, there are a good number of outstanding tree guides out there – some of which I use myself. But they can be quite expansive and overwhelming, especially for those of us just starting our tree identification journey. This book is a perfect entry-level guide which introduces you to the different ways in which you can look at trees in order to recognise key features.

DC: It’s very different. For a start, while most tree guides even just to Britain have 300 or more species, we have cut this down to about 90. So it’s simplified and entry-level, including all the common wild species and some introduced ones – those that people might see. It is very far from technical and we have tried to make every species interesting and fun in its own right. We have included some really great facts about many of the trees.

I’m always fascinated by the process behind the compilation of such a comprehensive ID guide. What was the most challenging part of writing this book?

DC: Trees are complicated, with all the different parts from leaves to bark. As the writer of most of the text, even though I had a decent grasp of many British trees, it was always a challenge not to forget all the details. The other very difficult task was in selecting the species. We wanted to include all the species people will notice, including such non-natives as Magnolias and Eucalyptus, while including the bona fide wild trees. But we couldn’t find room for all the tricky willows, and in the end we just hope our choice chimes with people.

GA: Believe it or not, the biggest challenge for me was actually finding the trees. It sounds mad, because trees are everywhere, right? But finding that perfect tree to photograph took a lot of research, walking and finding, and then the light had to be right, so I would revisit trees multiple times. Some of the trees were quite difficult to find, such as the Wild Service and Mulberry, so a lot of detective work was required to pinpoint them. I also had to make repeat visits to capture them in all their seasonal phases. There are trees from all over Europe in this book -thousands of miles and hundreds of hours! But those are the lengths I’ll go to get a great photo.

I particularly enjoyed the fascinating facts that you included for each species in the book. Did you learn anything new or particularly surprising about any of the tree species covered over the course of your research?

DC: I learnt an enormous amount. Did you know that each Holly leaf lives an average of seven years, for example? I also love the fact that Monkey Puzzles are essentially adapted to cope with browsing Sauropod dinosaurs.

GA: I became particularly fascinated with the Ginkgo – a unique throwback to the very beginnings of life on Earth; a tree which is neither conifer nor broadleaf, but somewhere in between.

A big part of conservation and land management is knowing what species are where and how many there are. How much do we currently know about the trees present in Britain and their population sizes?

GA: According to Forestry Research, only 13% of the United Kingdom is currently wooded. That’s such a small percentage compared to a few thousand years ago. Our ancient woodlands have all but disappeared, replaced by farmland, urban development and plantations. Veteran trees are our most important, as they support more communities and sequester more carbon than young trees. It’s essential that our remaining veteran trees and woodland fragments are fully protected to ensure the health of our future natural landscapes.

DC: The recent Atlas of British Flora means that we are well covered in these terms. For some of the rarer trees, such as Black Poplars, we know how many individuals there are of each sex.

Within this guide you include information on the months when leaves, flowers and buds might be seen for each species. Do you have any information or a feel for how rapidly climate change is impacting these features?

DC: Trees are a good early-warnings system, and you don’t need to write a book on trees to see that many are coming out earlier than they used to – hazel catkins in December, for example. However, it was very difficult to get any accurate figures for the book because it varies so much from year to year, and we were also covering Northern Europe as well as Britain. However, we certainly got a feel for the potential problems. Birch catkins are coming out earlier in response to warming, but might be approaching the earliest they can cope with physiologically. Oak budburst will affect both the caterpillars that feed on it and the Blue Tits that feed on the caterpillars. On a wider scale, temperature changes will affect the whole distribution of trees through the country, with northern species retreating. We could lose some specialists such as Dwarf Willow, and the climate will also become easier for introduced trees.

GA: I think that trees are more difficult to use as indicators than insects as trees have a much longer generational turnover, and they don’t move; however monitoring the emergence of blossom and leaves in spring and the falling of leaves in autumn is a great citizen science tool to establish changing trends.

Are there any trees in the UK for which the future seems particularly bleak?

DC: There are well known problems for ash trees and to a lesser extent oaks, and we simply don’t know how far their respective diseases will go. But as a warning, remember that the Field Elm, in its various forms, used to be lowland England’s most abundant tree. Paintings by our forebears of the countryside were often dominated by elms – now they are a shadow of their former selves. And as mentioned above, the warming climate will impact upon our more northerly species.

GA: Ash dieback is currently decimating younger adult trees, though there is a glimmer of hope in that veteran ash are currently immune to the fungus. Juniper is in massive decline across the UK due to loss of suitable habitat.

Finally, what are you both working on now? Do you have plans for further books?

DC: We have co-written two books on insects recently: A Year of Garden Bees and Bugs and An Insect a Day, both of which are published by BT Batsford and are narrative-style books.

GA: I am currently working on upcoming books about invertebrates. I have an exhibition of my photos planned, as well as workshops, talks and podcasts.

An Identification Guide to Trees of Britain and North-West Europe was published by John Beaufoy Publishing in April 2024 and is available from nhbs.com.

Book Review: Blue Machine

***** An engrossing odyssey into oceanography

In a break from many other books about the deep sea that talk about animals, Blue Machine focuses on the ocean itself, revealing a fascinating planetary engine. Equal parts physical oceanography, marine biology, and science history, topped off with human-interest stories, Czerski has written a captivating book that oozes lyricism in places.

Czerski is an accidental oceanographer, stumbling into the discipline from a background in physics. She boasts a long list of science communication credentials as a TV presenter, podcast host, columnist, public speaker, and author. This is a big book with chunky chapters but Czerski keeps the flow going by alternating between scientific explanations, fascinating experiments, and remarkable historical episodes. I find the deep sea endlessly fascinating and have been drawn ever further into oceanography through my reviews, yet something was always missing. This book has finally scratched the oceanographic itch I have long been trying to satisfy. How so, you might ask?

Stormy sea and waves crashing against a stony beach.
Stormy Waters IMG_6958 by Ronnie Robertson, via flickr.

Start with that introduction. If you zoom right out, what sets a planet’s temperature, and with it the potential for life, is the balance between energy input from the sun and energy loss to the universe in the form of heat. From this grand, cosmic perspective, what the ocean with its circulating currents does is intercept some of that incoming energy and prevent it from immediately escaping again, instead “diverting it on to a much slower path through the mechanisms of the Earth: ocean, atmosphere, ice, life and rocks” (p. 5). From an energy point of view, “the Earth is just a cascade of diversions, unable to stop the flood but tapping into it as it trickles past; and the ocean is an engine for converting sunlight into movement and life and complexity, before the universe reclaims the loan” (p. 6). To me, this was such an awe-inspiring, attention-grabbing perspective on life on Earth, expressed so eloquently, that I wondered: is Czerski the new Ed Yong of oceanography? Tell me more, please!

What helps to understand the above perspective is the fact that the ocean is a vast three-dimensional environment that is constantly in motion, creating and maintaining differences at different scales. Heat and salinity create different layers of water that do not readily mix, meaning the ocean is stratified. This results in gigantic underwater conveyor belts and waterfalls. What makes these processes interesting is the shape of the container holding all this water: i.e. the continents and underwater topography. The local gravitational pull of the underlying rocks deforms the water surface, creating domes and holes over very large surface areas, a shape known as the geoid. Many more fundamental features and principles are described though she admits that she cannot squeeze the full complexity of the ocean into one book, treating other topics only briefly or not at all.

Bright blue, large wave tubing with splashes all around it.
The tube by Misty, via flickr.

Admirably, Czerski is equally at home in the marine biology department and she features some wonderful critters here. True, these abound in all good popular science books about the deep sea, but her physics background allows her to show how the physical and biological worlds intertwine. A beautiful example of this is the mesoscale eddies that are spun off by oceanic gyres: large islands of rotating water that become temporary havens for all the plankton and fish that find themselves inside. The formation of these wandering buffets is such a regular phenomenon that large ocean predators such as tuna can make a living by roaming the seas in search of them.

Another captivating element is the many ingenious experiments, both historical and current, that she describes here. We almost developed a method to collect a long-term dataset on the global ocean’s temperature by bouncing sound waves through the seas, but the idea stalled after a successful pilot experiment in 1991. More successful is the Continuous Plankton Recorder Survey which has been running for the last 90 years, deploying mechanical recorders towed behind ships that use elegant internal clockwork to capture plankton on long strips of mesh and have gathered valuable long-term records.

The physical world also entwines with human history. One example is the narrow northern half of the Indian Ocean where gyres do not form but seasonal currents flow eastwards and westwards. The 14th-century Chinese Ming Dynasty used these to send expeditions of large ships laden with valuables up and down the coast of Asia and Arabia, trading goods for political influence and prestige. I was similarly captivated by the poorly known story of the 18th-century Scottish herring lassies: bands of female contractors who travelled south along the English coast each summer, following the southwards moving herring fleet. While the men worked the boats out at sea, the women were ready in ports and at beaches to gut, salt, and pack each day’s landing before the freshly-caught fish could spoil. Hard-working, skilled, and independent, they were decades ahead of most other women in Victorian England.

Wave Breaking on rocks at Asilomer State Beach.
Wave Breaking Asilomer State Beach by Charlie Day, via flickr.

All of this is backed up by an attitude that, coming from a scientist, is refreshingly clued in to social issues. This becomes explicit in the final chapter where she addresses the environmental issues she has so far avoided. Though a popular mantra in politics is that we need to follow the science, she opposes this “for the simple reason that science does not lead. Where leadership comes from is a clear statement of values” (p. 381). Science can inform these, yes, but we have to decide what we care about for ourselves and our communities. Going down this path involves hard questions without simple answers, and nuance rather than binary “I am right, you are wrong” categories. It also means breaking with our perception of “the ocean as the end of a one-way pipe” (p. 289). There is no “away” on this planet for our trash. And it means breaking with a culture of infinite growth on a finite planet. Her thinking here is influenced by her contact with Polynesian cultures that value cooperation, openness, and teamwork, in contrast to the Western mindset of ownership and power play.

If I need to sound a critical note it is the lack of illustrations. Though the UK version features nice endpapers and a stunning cover, there are only two maps and two illustrations in the rest of the book. Especially some of the physical oceanography principles would have benefited from explanatory diagrams.

Blue Machine is an engrossing odyssey into oceanography. Czerski brings her substantial experience in science communication to bear on this topic and has written a transformative book. She brings to life the watery fabric of the ocean itself in ways I have not encountered before.

Phenology Series: Spring

Springtime is often synonymous with rebirth, renewal and regrowth. As the Earth’s axis tilts towards the sun, our days become warmer and the snow starts to melt. The rivers and streams swell, air and ground temperatures rise, and we start to see new plant growth.

There are no fixed calendar dates for the beginning of spring. Ecologically, the start of this season relates to biological indicators, such as the start of certain animal activities and the blossoming of particular plant species. Phenology is the study of the timing of natural events from year to year, like the budburst of trees, the arrival of summer migrant species, the breeding bird season and the emergence of hibernating wildlife. You can find out more about the study of phenology in our previous blog post.

This is the first in our four part seasonal phenology series where you can explore a collection of ID blogs, books, equipment and events to make the most of the spring season.

Identification guides

Over the years, we’ve made a number of identification guides for UK species, many of which are active during spring. Here’s a selection that we think are particularly useful for this season:

 

 

 

 

 

 

 

 

What you might see:

  • You will likely start to notice the first flowering of many plant species, including Cuckoo Flower (Cardamine pratensis), Meadow Foxtail (Alopecurus pratensis), Bluebells (Hyacinthoides non-scripta) and Wood Anemone (Anemondoides nemorosa).
  • The budburst of trees, including Alder (Alnus glutinosa), Horse Chestnut (Aesculus hippocastanum), Rowan (Sorbus aucuparia) and Sycamore (Acerpseudoplatanus), with many also having their first leaves appear in March or early April.
  • Trees such as Hawthorn (Crataegus monogyna), Blackthorn (Prunus spinosa), Hazel (Corylus avellana) and Field Maple (Acer campestre) begin to produce blossoms and catkins. Spring blossom can start as early as February and last through to early summer.

  • The emergence of several insect species, such as Seven-spot Ladybirds (Coccinella septempunctata), Orange Tip butterflies (Anthocharis cardamines), Green Tiger Beetles (Cicindela campestris) and Dark-edged Bee-flies (Bombylius major).
  • The beginning of the nesting season for most European bird species, including Great Tits (Parus major), Tawny Owls (Strix aluco), Long-eared Owls (Asio otus) and Wrens (Troglodytes troglodytes). Great Crested Grebes (Podiceps cristatus) start their courtship rituals in early spring, with their elaborate dances, synchronised swimming, preening and ‘mewing’.
  • Many migratory birds also begin to arrive during spring, such as Chiffchaffs (Phylloscopus collybita), Swallows (Hirundo rustica) and Wheatear (Oenanthe oenanthe).

  • Reptiles and amphibians become more active during spring and into summer, coming out of hibernation and venturing to find food and breeding sites. Frogspawn, toadspawn and tadpoles also begin to appear during early spring and onwards.
  • A number of mammal species give birth during this time so that their young are born when resources are most plentiful. Badger cubs (Meles meles), which are mainly born in February, will begin to gradually emerge from their setts during spring.

Activities:

Upcoming events:

Earth Day – 22nd April
International Dawn Chorus Day – 5th May
Hedgehog Awareness Week – 5th to 11th May
World Bee Day – 20th May
International Day for Biological Diversity – 22nd May
World Environment Day – 5th June
World Ocean Day – 8th June
Insect Week – 24th to 30th June

Essential equipment and books:

An Identification Guide to Garden Insects of Britain and North-West Europe

 

 

 

 

Wild Flower Flowcharts: Species ID the Easy Way

 

 

 

Great British Marine Animals

 

 

 

 

 

Opticron Hand Lens: 15x 23mm

Check out our guide to hand lenses and our full range.

 

Educational Rock Pooling Kit

 

 

 

Wireless Nest Box Camera.

Wireless Nest Box Camera

 

 

 

 

 

Browse our full collection for more spring books and equipment highlights.

Author Q&A with Jeremy Biggs & Penny Williams: Ponds, Pools and Puddles

Ponds, pools and puddles are a common sight in our landscape and play a very important part in sustaining wildlife. In Volume 148 of the New Naturalist Series, the authors provide a comprehensive survey of the variety of plants and animal life for which they are a habitat, and discusses the way in which they are used, their importance, and compares their major variations in life cycles. Ponds, Pools and Puddles makes an invaluable contribution to raising awareness of these popular, yet frequently underrated freshwater habitats and gives them the attention they rightly deserve.

Jeremy Biggs and Penny Williams work for Freshwater Habitats Trust, a wildlife conservation charity focused on reversing the decline in freshwater biodiversity. They have been involved in numerous research projects, publications and conferences on the ecology and management of ponds and other freshwater habitats.

We recently had the opportunity to talk to Jeremy and Penny about how they became interested in ponds, whether they think technological advances will play an important role in future pond research and more.

Jeremy Biggs wearing wellies on the side of a large pond looking at something he has caught in a net on a sunny day with clear, blue skies.
Jeremy Biggs

Can you tell us how you both became interested in ponds and pond life?

P: I had a wonderful early experience at primary school: we had a trip to a local pond in Southborough, Kent and caught a Three-spined Stickleback. The teacher brought a couple back to a classroom tank and I watched in amazement as the beautiful azure blue and orange male made a nest and fanned the eggs with his tail.

J: I was interested in wildlife from my teens, particularly birds, but it was at university (Royal Holloway, University of London) that my interest in freshwater was awakened. Crucial for me was an inspirational teacher – the late Dr Nan Duncan – who ran one of the best courses there was on freshwater biology.

I found your definition of a pond interesting as there appears to be so many ways of deciding what constitutes a pond. Can you talk us through the process that you went through to decide on the parameters for your definition?

P: After working on ponds for a couple of years it became clear that we needed an easy-to-use definition, particularly to deal with the inevitable question: is it a pond or a lake? It also had to include temporary ponds, which were hardly recognised in the UK at the time. So, at Freshwater Habitats Trust we went for an area-based definition because that’s easy to measure. We set 2 ha as the pond/lake cut off, as this seemed to best capture the difference between the two. The ‘wet for at least four months of the year’ is included as this is roughly the time needed for ponds to develop a wetland plant community. That means that you should be able go to a basin that’s wet or dry at any time of year and tell if it is a pond. In practice, the lower limit is a little flexible: we use 1m² to include tiny pools and garden ponds, but for practical reasons use 25m² for national counts of ponds where it’s impractical to count every little countryside puddle.

Penny Williams carrying an inflatable kayak by a pond on a sunny day with blue skies.
Penny Williams

It’s clear that the first national pond survey paved the way for gaining a more in-depth understanding of pond classifications, species, ecological preferences and more. What do you think the next step is in gaining an even greater understanding of ponds, and do you think modern, technological research methods will play a big part in this?

P: Current policy, legislation and general awareness of the importance of ponds now lags way behind our knowledge of pond ecology – so although there is still an enormous amount more to find out about pond biology, I think the greatest need is for knowledge that shows the importance and value of ponds for protecting freshwater biodiversity. For example, we need evidence about how high-quality pond creation and restoration can be used, at a landscape scale, to maintain healthy freshwater metapopulations, prevent extinctions and enable the spread of species that may be increasingly isolated by pollution and climate change. This is a real focus for Freshwater Habitats Trust, where we’ve been championing the importance of small waterbodies – and ponds in particular – for more than three decades.

Modern technology will undoubtedly play a part in this: DNA, and eDNA in particular, may be a game changer, although we are some way off from using it for the purpose that I would love: routine monitoring of all waterbodies (rather than just rivers) to get a real understanding of what is happening to freshwater biodiversity in our landscapes and how we can best address that.

New technologies are always exciting but, to be honest, I think the main thing we need at the moment is publicity, publicity, publicity. Widespread knowledge and appreciation at all levels of how wonderful these little waterbodies are.

J: More than a particular technological solution, what we really need is funding for ‘National Pond Survey 2’, led from a conservation perspective and, as we’ve been doing for the last 30 years, generating and testing the ideas that Ponds, Pools and Puddles summarises. There’s so much to learn here: are ponds still declining in quality? What’s the effect of pond management? How do ponds, lakes, streams, wetlands and rivers interact? What about the microbiota which we know next to nothing about (that is something eDNA will help with)? How is climate change affecting ponds?

It was fascinating to learn that there is a much greater variety of species found in ponds in comparison to river communities. How important do you think ponds are in the recovery of nationally scarce or Red Data Book species?

J: The very wide variety of nationally scarce and Red Data Book species found in ponds means that ponds are absolutely vital for the recovery of these species. The special virtue of ponds is that, with their small catchment, we can still find large numbers of very high-quality ponds in the landscape, or create new, near pristine, clean water ponds in areas protected from pollution. This is all much more difficult for streams, rivers and many lakes with their much bigger catchments. There’s no doubt that creating and restoring networks of clean water ponds could put many of our Red Listed freshwater species on an upward trajectory. Indeed, this is one of the aims of Freshwater Habitats Trust’s vision to build the Freshwater Network: to reverse the decline in freshwater biodiversity. This will see us creating a network of wilder, wetter, cleaner, more connected freshwater habitats, and ponds play a big part in this concept.

Delta Pond in Eugene, Oregon surrounded by trees, plants and flowers on the shoreline.
Delta Pond in Eugene, Oregon by Rick Obst, via flickr.

To what extent do you expect climate change to affect the ecological formation and chemical makeup of natural ponds in the future?

P: The effects of climate change on ponds are undoubtedly going to be complex, varied, unexpected and unpredictable. For example, in the Water Friendly Farming project, where we’ve been monitoring the same ponds for over a decade, a clear (but not predicted) result is that shallow ponds are being rapidly encroached by marginal wetland vegetation in dry years, and this vegetation persists so that open water is being lost. However, the effect differs: where ponds are grazed this has been beneficial, sometimes enabling uncommon plants like Orange Foxtail (Alopecurus aequalis) to spread to lovely new poached drawdown zones. In other cases, it has been sad to see little ponds with water buttercups be replaced by just wetland grasses like Sweet-grasses (Glyceria spp) and Creeping Bent (Agrostis stolonifera).

J: Climate change is going to have a big impact, but the effects are going to very difficult to predict. Ponds are so varied, it’s inevitable that their responses will be too. It’s possible to make sweeping generalisations (pollution impacts get worse, many temporary ponds disappear) but there’s a good chance these will wrong. It’ll be crucial to have a good set of observations of what is actually happening to ponds. In the meantime, the priority should be to use ponds to put as much clean water as we can back into the landscape.

What is the most interesting finding that you have come across while researching ponds, pools and puddles?

P: For me it’s undoubtedly been the opportunity to riff on my geological background and delve into the ancient natural processes that shaped ponds in the past – and which still has so much to teach us about ponds (and other freshwaters) today. For example, I love the fact that almost all of today’s wetland plants evolved in landscapes that had already been shaped by grazing and poaching processes for over 200 million years – no wonder many wetland plants benefit from grazing and the presence of muddy ground! And, at a time when many people (including scientists and policymakers) still undervalue ponds as man-made artificial features, some of world’s best-preserved evidence of early life in terrestrial landscapes (the Devonian Rhynie cherts in Scotland which are c400 my) reveal an environment that is full of ponds with the fairy shrimps and tadpole shrimps swimming amongst stoneworts.

J: For me, it’s been the chance to bring together so much information that we simply haven’t had a chance to publish anywhere else. With the amount of time it takes to publish research, we are extremely selective about what we write up in papers. Only the most important results ever make it into print. It’s also allowed us to look at groups we don’t work on so much ourselves (such as the microalgae) and see how these reinforce many of the ideas about ponds from the more obvious bigger plants and animals. It’s also nice to get into the book the truth that many of our biggest and most famous wetlands, like the Coto Donana in Spain, are actually massive pond complexes comprised of over 3,000 temporary ponds!

Pennington Flash Pond through the Trees.
Pennington Flash Pond through the Trees by Ronald Saunders, via flickr.

Are either of you working on any other projects that we can hear about?

J: Freshwater Habitats Trust is really busy at the moment! Amongst other things we are:

– Launching the Freshwater Network: this is our plan to restore freshwater biodiversity taking account of freshwaters, including the critically important small (standing and flowing) that make up most of the water environment but have been largely overlooked for 100 years.

– Developing the network in key regions to protect and restore freshwater biodiversity in some of our most important freshwater landscapes like the New Forest, The Brecks, in the catchment of the R. Thames and in the Yorkshire Lowlands.

– Working with colleagues in Europe and South America looking at pond biodiversity, ecosystem services and climate change as part of the EU Horizon 2020 PONDERFUL project.

– Beginning research on the value of pond buffer zones in a project for Natural England and assessing the role that eDNA can play.

– Creating thousands of new ponds with Amphibian and Reptile Conservation as part of the Newt Conservation Partnership – created for Great Crested Newts but with much wider benefits for wildlife and, critically, monitoring the effects so we can tell whether it’s really making a difference.

– Continuing catchment research which looks at all of the water environment. Fortunately more and more people are realising that in every landscape, small waters are a lifeblood.

– and so many others….

 

Ponds, Pools and Puddles is available to order from our online bookstore here.

Neil Middleton on the 4th edition of Bat Surveys for Professional Ecologists

The 4th edition of Bat Surveys for Professional Ecologists: Good Practice Guidelines is the latest update of the Bat Conservation Trust (BCT) Guidelines and features new content on biosecurity, night-vision aids, tree surveys and auto-identification for bat sound analysis. Several key chapters have been expanded, and new tools, techniques and recommendations included. It is a key resource for professional ecologists carrying out surveys for development and planning.

Neil Middleton is a licensed bat worker and trainer. He is the Managing Director of BatAbility which offers bat-related and business skills development courses and training throughout the UK and Europe. He kindly agreed to take the time to write an article for us which will help ecologists and bat workers assess some of the key content and changes within the 4th edition of the Bat Survey Guidelines, and evaluate how this is likely to impact you, your colleagues and your business.

I have been asked to write this blog for NHBS regarding the recently published 4th edition of the BCT Bat Surveys for Professional Ecologists: Good Practice Guidelines. Straight away I feel I should say that, broadly speaking, we (BatAbility) are supportive of the overall spirit of intent that these new guidelines are seeking to achieve.

The contributors to the finished work and the editor of the final draft will have, I’m sure, had much debate about the final wording of the guidelines. It certainly cannot have been an easy task to come up with approaches that a broad range of experienced people, each with different backgrounds, were able to fully agree upon (or at least not disagree). In addition to which, these guidelines need to cater for all the component parts of the UK, where differences in legislation, planning, licensing etc. apply.

What follows are my thoughts on why you need to be up to speed with what’s happening. When I discuss some of the points you need to be aware of, it’s not that I am criticising or disagreeing with what has been produced, it is more that I am encouraging you to think about things that may not immediately be apparent when it comes to impacting (positively or negatively) upon your daily business operations.

Broadly speaking, these Good Practice Guidelines are what we all need to be referring to now for guidance and, barring any new properly released formal material direct from BCT (i.e. it doesn’t matter what someone says on a social media post or during a webinar) that either updates, changes or gives additional explanation to what is in the 4th edition, this is where we, as a community, are at. BCT have confirmed that a few changes to the text will be made by way of an amendment document and this, in conjunction with printed Q&A material resulting from BCT webinars (November 2023 and February 2024), will prove to be essential complimentary reading for everyone relying upon these guidelines during their day-to-day work.

At this stage, I feel that it is also important to say, and BCT have been very keen to emphasise this point (e.g. during their webinars on the subject), that the guidance is very clear about deviating from its approaches where specific cases and/or experienced, professional judgement suggests that a different approach can be taken for good reason, provided that it is fully disclosed and discussed within generated outputs (e.g. reports going to local planning departments). The material produced is described as ‘guidelines’ after all, and should not be used prescriptively when common sense, good scientific rationale or proportionality, as examples, suggests otherwise.

These updated guidelines were keenly awaited by bat workers for some time leading up to their publication.The driving force behind the update was thought mainly to be the integration of Night Vision Aids (NVAs) into our bat survey approach, as initially described within an Interim Guidance Note published in May 2022 and covered in this article on the BCT website.

I mention this for two reasons. Firstly, it’s what I feel almost everyone was genuinely expecting. Secondly, these revised guidelines don’t (as anticipated rightly or wrongly!) fully address some of the specific aspects of where the NVA debate is going to finally arrive. Regarding this aspect of bat work, the finer detail around this matter is now being tackled by a review panel, and BCT will inform us as/when they are in a position to do so. In the meantime, the Interim Guidance (2022) remains as an additional, essential point of referral. Having said that, within these new guidelines there are regular pointers, reminders and requirements that NVAs should be incorporated within survey design.

So, why do we need to pay any attention to these new guidelines? If they are not telling us about the specifics of the NVA approach, then you may very well think that there’s not much value in getting your own copy and reading through, yet again, what was there before. Yes, you may very well think that. Yes, you would be very wrong.

There is so much in here that is going to make your life as a bat consultant different to how it was up until last year (2023). There are undoubtedly elephants potentially in some people’s rooms. But an hour after sunset when it’s too dark to see, some people may not be aware that elephants lurk (well not unless they have an NVA, and it’s pointing in the right direction). There are resourcing implications, cost implications, tendering implications, health and safety implications – there are all of these and more that you need to be aware of. And by implications I mean a mix of positives and negatives. It is a classic situation whereby in solving a range of issues and making clarifications on others, new issues and opportunities inevitably arise.

From a surveyor’s point of view, the dreaded dawn work is mostly redundant, although I feel there are still going to be occasions from a bat behaviour point of view, and from a health and safety point of view (e.g. working within busy town centre areas) where dawns could still occasionally be a better, or even a desirable approach. The guidelines certainly don’t say you should never do a dawn survey again, full stop.

From a business owner’s perspective there are matters that will need serious consideration and budgeting for. This could impact (again negatively or positively) upon your turnover, your approach to tendering, resourcing, the deployment of staff and equipment, as well as the careful balancing of your team’s time at their desks versus time in the field. All of this, of course, needs to be considered against the benefits to bat conservation. The challenge on the business model is not necessarily a bad thing, provided you are fore-armed and have seriously thought through how these changes impact upon your organisation.

Please don’t construe that I am not supportive of what these guidelines are seeking to achieve. In many respects, from a conservation perspective, I feel things have moved closer to where they should be. Balanced against this, however, I urge you to be aware that you need to get your head around the new approaches as a matter of urgency, and build into your day-to-day workings methods of adapting to the changes.

There is neither the time nor the space to cover it all here, and to do so would merely be to repeat what was contained in the guidelines in any case. What I am seeking to do is alert you to the fact that, despite how much you may have seen on social media etc. relating to the NVA debate, there are arguably equally as BIG matters contained within the new edition that don’t relate to the use of NVAs.

Here are some key points of where things have really changed, in my view:

  • Dawn surveys are pretty much redundant, as we are now pressed to doing dusk surveys with NVAs. This is great from a work-life balance, but it also removes up to 50% of the previously available time slots on your survey calendar.
  • NVAs are to be deployed on pretty much every emergence survey, covering the survey subject as fully as possible, with the associated implications for reviewing all that footage and storage of data. Video footage is much larger than the pure audio that you will have been accustomed to.
  • A licenced bat worker is required to be present for any field work where a licensable situation could occur, no matter how likely or unlikely, be that structures or trees. Following the definite statements in the 4th edition, there is no longer any ‘wiggle room’ on this issue.
  • Bats and Trees – aerial assessment (be that by ladder, rope or MEWP) is pretty much the desired approach, meaning that this will be a greater part of these jobs and, in conjunction with this, licensed bat worker(s) will need to be present.
  • Due to the increased requirement for licensed bat workers to be present far more often than previously was the case, and the increase in tree climbing work where licensed bat worker(s) should also be used, there are resourcing implications that need to be considered when it comes to training in these areas. It is important to be aware that not every licensed bat worker within a business is either capable of or desires to climb trees. Also, in some business models, the licensed person/people are in more senior positions where their presence in the field conflicts directly with the role they are being asked to perform for the business (e.g. team management, client meetings, tendering, business process improvement). So, for some businesses, depending upon their current resources of licensed bat workers, there may need to be a rethink.

What I have described above is most definitely not the full suite of changes, but hopefully it’s enough to demonstrate that you need to get on top of what’s in there.

The key message is, if you haven’t already got yourself a copy and read it through in detail, then as a matter of urgency you should do so. Then you will be able to consider how you are going to achieve what is required.

The 4th edition of Bat Surveys for Professional Ecologists is available as a downloadable non-printable version direct from the BCT website.

Also available as hard copy from nhbs.com – remember to use your BCT membership number to get a 20% discount.

Author Q&A with Tim Mackrill: The Osprey

The Osprey book cover.Persecuted mercilessly in Britain, the magnificent Osprey became extinct in the 1890s. However, the return of the species to Scotland in the 1950s was the catalyst for reintroduction programmes elsewhere, and this remarkable raptor is now an increasingly common sight in our skies. This Poyser monograph includes over 150 photographs and details the distribution, migration, foraging ecology, breeding behaviour and population dynamics of this spectacular bird. It also places emphasis on the conservation efforts across the species British and African haunts, the latter of which has only recently been discovered thanks to satellite tagging technology. 

Tim Mackrill holding an Osprey in a field.
© John Wright

Nature conservationist Dr Tim Mackrill completed a PhD on Osprey migration at the University of Leicester and has since worked with the Roy Dennis Wildlife Foundation on various reintroduction projects, including the return of Osprey’s and White-tailed Eagles to England. He managed the Rutland Osprey Project for over ten years and is the founder of the Osprey Leadership Foundation, which aims to inspire the next generation of conservation leaders by working with young people who live along the Osprey’s migratory route. 

We recently had the opportunity to speak to Tim about The Osprey, including why he is so captivated by this species, the technological advances that have helped increase our knowledge of them and more.  

Your entire adult life, and indeed much of your childhood, appears to have been spent observing and studying Ospreys. What is it about this species that so captivates you? 

Anyone who has seen an Osprey will vouch for the fact that they are a spectacular bird, particularly if you have been fortunate enough to see one plunge into water to catch a fish. However, it is the species’ migration that I find so captivating. As I write in chapter 6 of The Osprey, whenever I see a newly arrived Osprey perched beside its nest in the spring, I always think it is rather humbling to consider what the bird might have experienced since leaving its wintering site a few weeks earlier: traversing the Sahara, negotiating imposing mountain ranges, crossing areas of open sea. It could even have flown through the night – its path illuminated only by stars and moonlight – with the urge to reclaim its nest– a source of great motivation to power its way north. The fact that Ospreys are faithful to the same nest site each year, and that we know them as individuals, makes it even more special to see a familiar bird back home in the spring.  

Osprey catching a fish in the sea.
Adult female Osprey – The Gambia, by John Wright

In the introduction of your book, you mention that there can be few bird species that are as well studied as the Osprey. What technological advancements over the past few decades do you think have been most influential in increasing our knowledge of this species? 

The advances in satellite tracking technology since the 1990s have added greatly to our knowledge of Ospreys. The most recent transmitters are able to log data at very high temporal resolution – as often as once per second in some cases – and this gives some amazing insights into the migratory journeys of individual Ospreys. It has shown how Ospreys are able to adapt their flight according to environmental conditions, and to make very long sea crossings – something that most raptors avoid. It has also demonstrated how experiences on the first migration shape the subsequent migratory habits of individuals, and also how young birds enter the breeding population for the first time.   

Historically, the persecution of Ospreys has been a large problem within Britain. Is this something that is still an issue? 

Fortunately, this is much less of an issue now. Egg collecting was a major threat during the early years of the Osprey recovery in Scotland, but has declined since the introduction of custodial sentences. Historically,  persecution at fishing ponds was a major cause of the population decline of Ospreys in the British Isles, and although the occasional Osprey is still shot, the sight of an Osprey plunging into the water at great speed, and then lifting off a few seconds later with a fish grasped in its talons, is much more likely to excite and inspire people than to create animosity. The success of an Osprey photographic hide at a working trout farm, Horn Mill, in Rutland is testament to that.  

Manaton Bay Osprey Family.
Manaton Bay Family by John Wright.

Ospreys appear to respond well to translocation projects. Is this down to the characteristics of their species, or because we have good quality research and evidence to indicate how best to undertake such projects? 

Translocation has been a key tool in helping the Osprey recover from the negative impacts of historical persecution and DDT. The first Ospreys to be translocated were in the United States in the late 1970s and in Europe, at Rutland Water, in the mid-1990s. As such, a wealth of information on all aspects of the translocation process has been developed and refined over the years, which means that more recent projects are much better informed than earlier ones. However, it is the species’ own breeding biology that is key. Young Ospreys, particularly males, are highly site faithful and usually return to breed close to their natal site. The imprinting process seems to occur after fledging and prior to migration and so, by moving young birds at around five to six weeks, when they are a fortnight from making their first flight, they regard the release site as home, rather than their natal nest. All young Ospreys undertake their first migration alone, and so as long as translocated Ospreys are provided fish after fledging in the way that wild-fledged birds are provisioned by their parents, they migrate as normal. Then, all being well, they return to the release site for the first time at two years of age.  

As a fully piscivorous species, do Ospreys suffer from ingesting water-borne pollutants or plastic waste? 

The Osprey is regarded as something of a sentinel species for environmental contaminant exposure and effects in aquatic ecosystems. It was badly affected by DDT in the United States and some parts of Europe. More recently, research in the United States has identified Polybrominated biphenyl ether (PBDE), flame retardants used in thermoplastics, textiles, polyurethane foams and electronic circuitry, as a potential emerging threat to Ospreys.  

PBDEs have been shown to bioaccumulate and biomagnify up the food chain, but unlike organochlorine pesticides which have declined in aquatic ecosystems in recent decades, PBDEs have increased since the 1970s. Plastic waste is also an issue, particularly in some of the coastal areas where Ospreys overwinter. It is a sad sight to see a wintering Osprey perched on a beach surrounded by ubiquitous plastic pollution.  

Red Kite chasing adult female.
Red Kite chasing adult female by John Wright.

When it comes to the Osprey, where are the gaps in the knowledge? What are the things that you’re still excited to find out about them? 

There are still elements of migration that we do not fully understand. We know that young birds use a process known as vector summation (an inherited programme of distance and direction) on their migration, and that adults become expert navigators as they become more experienced, but we do not know the exact mechanisms for this, though factors such as landscape features may be important. Personally, I like the fact that there is still this mystery around certain aspects of bird migration – it adds to the sense of awe that is created by the remarkable journeys of Ospreys and other species. 

Finally, what’s keeping you occupied day-to-day at the moment? And do you have plans for further books? 

One of the most exciting projects I am involved with at present, through my work with the Roy Dennis Wildlife Foundation, is the reintroduction of White-tailed Eagles to southern England. The first pair bred successfully last year and it has been exciting and encouraging to see how the birds are fitting into southern England. Like Ospreys, they take fish from the South Coast estuaries and so there is a wealth of suitable habitat for them. The fact that there are now breeding Ospreys and White-tailed Eagles back on the South Coast of England is very exciting and testament to what a positive, proactive approach to conservation can achieve. I love writing and so I definitely have plans for future books.  

A few years ago I also set-up a charity, the Osprey Leadership Foundation (OLF), which works to inspire and enable young conservation leaders. I feel very privileged to have had Roy Dennis, who wrote the foreword for The Osprey, as a friend and mentor for many years, and I hope the work of OLF will help the next generation of conservationists to follow the lead of people like Roy to undertake bold and ambitious projects for nature recovery – we certainly need it. 

The Osprey book cover.

The Osprey is available to order from our online bookstore.

Author Q&A with Illustrator Mike Langman

Photograph of Mike Langman, nature illustrator, on a coastal path wearing a checked shirt, cap and with a camera around his neck.Mike Langman has been a full-time illustrator specialising in birds since 1992 and has published a total of 85 books, including Park and Garden Birds and the Guide to Ducks, Geese and Swans, with his work also featuring in many UK birdwatching magazines. 

Mike worked for the RSPB at their headquarters in Bedfordshire for nine years after finishing his education at Middlesex Art College in 1983, and his illustrations have been published in most of the RSPB’s quarterly Nature’s Home magazines, on nearly every RSPB reserve, on identification cards, in murals in information centre, and in other outlets across Britain and Europe.

Fulmar sketch by Mike Langman.
Fulmar sketch by Mike Langman.

He has been an avid birdwatcher from the age of ten and particularly enjoys birdwatching around his local area in the South West, especially Berry Head in Devon, with his knowledge and expertise regularly sought by local organisations. Mike is also a voluntary art editor for Devon Birds, his local bird society, where he has previously held a number of roles in numerous years between 1994 and 2010. 

Mike recently took the time out of his busy schedule to answer our questions about his career in illustration, which mediums he uses to create his drawings and more. 

How did you get into illustrating nature?  

A love of nature started with walks with my parents and visits to my grandparents – one set keen on birds and the other owned a farm where I could (more or less) have free range to explore. Drawing wildlife came from copying pictures I saw in books of wildlife that excited me, initially big cats but as I watched birds in gardens and countryside I would copy pictures from books of them too. 

What are your favourite mediums for illustrating books?  

Most of my published work is a mixture of watercolour for its freshness and clarity, but to speed up the process I (like many other published artists) use gouache too, this being opaque pale paint that can be put on top of darker watercolour to create feather edges and highlights etc. A watercolour purist uses the white of the paper to shine through pale areas!   

Mike Langman's pencil and watercolour double page illustrations with annotations of a Warbler.
Warbler field sketch by Mike Langman.

How do you approach illustrating a bird you’ve perhaps never seen in real life?  

I use whatever I can get my hands on, googling photos or videos (better for capturing character), but I still use skins (dead crudely stuffed birds) held in museums like Tring or even Exeter and Torquay. 

How do you record a bird‘s behaviours, and have you seen any unusual behaviours from a common bird? 

Yes, as a birder I’m always looking for not just unusual species but behaviours too –– an inquisitive mind leads to a better understanding of the species and I do illustrate behaviour in published work when required to.  

What has been your favourite bird to illustrate that you keep coming back to?  

That’s a tricky one, but I love seabirds and warblers. I suppose if I had to choose one it‘s the Firecrest for its character and colour – a truly stunning tiny bird. But, I must not forget our south Devon speciality, the Cirl Bunting, and, and I could go on!   

Cirl Bunting field sketch in pencil and watercolour by Mike Langman.
Cirl Bunting field sketch by Mike Langman.

How has climate change altered your approach to projects? 

I do a huge amount of illustration work from home but I do travel a bit too (although much more locally based than I used to be). At home I’m trying to be as carbon neutral as possible with solar panels, storage batteries, good house insulation and, last year, buying an electric car. When I do travel abroad I do as much wildlife watching as possible – visiting reserves and hiring guides which will help maintain some of the very important and often not so important biologically rich areas. 

Do you see wildlife human conflict in your work? 

Not so much in the publishing world, but as part of my secondary job as a wildlife guide here in Devon, running walks, tours and cruises, I have witnessed some terrible scenes. Dolphins caught in nets, seals with plastic rings and fishing gear snagged around their necks, jet skis harassing dolphins, fishermen throwing rocks at seals and even fishermen having ‘fun’ catching gulls with baited hooks. Away from the sea we have hedges cut by land owners at the wrong times of year, and housing developments on green land around Torbay in areas I used to watch wildlife...

What bird do you wish you had seen and why? 

Pretty much every bird I haven’t seen – but I know that’s not a good thing, practically and in terms of harm to my carbon footprint, and inevitably it’s just not possible. So, I keep it local and look for anything that provides me with a challenge to find, identify and share with others. For more than 30 years I’ve wanted to find a Hume’s Warbler (a small and very rare eastern Siberian migrant) at my local lakes at Clennon Valley in Paignton (where I volunteer as part of the friends group). In December 2023 I did a double take when I heard one calling, ‘Che-wee, Che-wee’. Eventually after what seemed like an eternity I located and watched it, sketched it and shared the sightings immediately with others. The bird stayed around for over a week. I guess I need a new goal now… 

What projects are you working on right now? 

I’ve just finished the 3rd edition of the Helm Field Guide to the birds of the Middle East and painted its new cover too, which I’m very proud of. I’m also working on some wood etching images (my work completed on the computer!) for Greenspace designs for the Lower Otter Restoration Project.

Mike Langman's most recent project, the illustration for the cover of Helm's Birds of the Middle East, featuring a watercolour painting of a Eurasian Eagle-Owl stood in a rocky crag.

A collection of books illustrated by Mike Langman can be found in our bookstore here. 

Author Q&A with Hugh Warwick: Cull of the Wild

Cull of the Wild cover showing a red squirrel on the right facing a grey squirrel on the left, with a blue sticker on the cover saying 'signed copies.'In Cull of the Wild, author Hugh Warwick investigates the ethical and practical challenges of managing invasive species to increase biodiversity. He explores the complicated history of species control over time, while also combining scientific theory and subtle humour, to explain the many issues conservationists face when trying to protect native species from their non-native rivals.

Hugh Warwick, author of Cull of the Wild, in a black and white photo wearing a shirt and gilet.Hugh Warwick is an ecologist, conservationist and writer who specialises in the study of hedgehogs. He has published three books focusing on this species, however he recently expanded his field of study to include invasive species while writing Cull of the Wild. He has previously written for BBC Wildlife, New Scientist, The Guardian and The Daily Telegraph, is the spokesperson for the Hedgehog Preservation Society, runs courses on both hedgehog conservation, and lectures in creative writing.

Hugh recently took the time to talk to us about his book, including what inspired him to write Cull of the Wild, how he hopes his book will help future conservation methods, and more.

Firstly, what inspired you to write a book on the culling of invasive species?

The very first independent field work I did in 1986 – for the 3rd year project of my degree – took me to North Ronaldsay. My supervisor had a friend who was both the GP and the bird warden on this island, the most northerly in Orkney. He had noted that there seemed to be a correlation between the increase in number of imported hedgehogs (that was the postman’s fault!) and the decrease in breeding success of ground nesting birds – in particular the Arctic Terns. My work was to try and find out how many hedgehogs there were. This turned out to be around 500 – not the 10,000 the Daily Express had reported! The bird observatory organised an airlift to remove the hedgehogs after I had gone and I returned in 1991 to repeat the survey. Since then I have found the collision of ecological study with human concerns really fascinating.  

This led me to become involved, rather inevitably, in the Uist hedgehog saga, where the RSPB and Nature Scotland were killing the hedgehogs for the very same reason they had been airlifted from North Ronaldsay. I quickly shifted from reporting on the story for BBC Radio 4, to joining the campaign against the cull, and then doing the research that helped stop it. But while all this was happening, I met a researcher from New Zealand who was telling me that they were killing hedgehogs over there (in the 1860s we sent a load of hogs over to help the colonialists feel more at home) I could see no reason not to kill those hedgehogs.  

That apparent contradiction has been spinning in my head ever since and was the springboard for this book.  

Close up photograph of a New Zealand Hedgehog walking through long grass.
New Zealand: Hedgehog, by Eli Duke via flickr.

How did you find researching such differing opinions on the subject, and have your preconceived opinions changed over the course of writing this book? 

I found this book so very different from all the others I have written. Previous outings have always been with people who are just really pleased to talk – to share their enthusiasm for Beavers or Water Voles or owls. This was the first time where I felt like the initial communication was almost like a job interview – assessing whether I was suitable to talk to. Some people simply refused to talk, others were cagey. I guess I was quite naïve! 

The journey of the book is basically one where my head and my heart are in constant debate. I lay out my ‘bunny-hugging’ prejudices at the start. I suppose I was hoping to find that all instances where animals were being killed could be dealt with in other ways.  

One of the biggest lessons I learnt, though, was about how people, even ones with whom you have fundamental differences of opinion, share so much common ground. But you will never see that common ground if you charge in at the difference! I love that one of my potentially conflicting interviews ended up with the biggest argument being over who recorded the best version of Sibelius’ 5th Symphony! 

In Chapter 1, you discussed that animals are shown to be continually developing to become more like humans – problem solving, making and using tools etc. Do you think this gradual form of humanisation may lead to more equal ‘rights’ between animal species and humans in relation to killing for conservation?

I would not look at this as humanisation – that is slipping back into the human exceptionalism that got us into this mess. Currently the degrees of cruelty we deliver to wildlife is arbitrary, based in large part on language and on the names we give them, even different members of the same species. 

We need to recognise that these animals being killed experience pain, joy, fear and hope. If the realisation that different species have the capacity to do human-like things is enough to get this recognised, then that is some progress.  

I have been gently eased away from the concept of ‘rights’ for animals and towards a desire to see cruelty minimised. Rights are important and I see their value – but here, I feel the best outcomes will emerge from a utilitarian desire to maximise good and minimise bad. Though that requires we have the idea that these animals, most of whom are simply in the wrong place at the wrong time, are individuals and can suffer.  

A close up of a Red Squirrel stood on its hind legs on a rock eating a nut it's holding in it's front paws.
Red Squirrel, by Caroline Legg via flickr.

You must have visited many places and spoken to many different people about different species while you were writing this book. Were there any particularly memorable moments or experiences that that have stayed with you?

I did not get to some of the places in this book – time, Covid, money and a desire to minimise flying all conspired to keep the exotic interviews on Zoom. But the adventures I did have were all special.  

Heading out along the coastline of South Ronaldsay, Orkney, with Spud – the most handsome labrador I have ever met – was magical. The wind blew, the surf crumped in from the Atlantic, and Spud, well, he followed his nose and we followed him as he tracked down evidence of Stoats.  

The Stoat story is so important – it is about speed and trying catch this problem early – they were only found in 2011. But more than the practical, it is also about the buy-in of the local population. If the public are not onside, the conservationists can give up now. So it is about education and communication as much as it is about deciding which traps to use and where to site them. 

A close up of a stoat climbing over a dark, wet, mossy log.
Stoat (Mustela erminsea) by big-ashb, via flickr.

In what way do you hope that Cull of the Wild will help future animal conservation efforts?

The overarching message I hope people get from Cull of the Wild is that ecology is both fascinating and VERY challenging when it is part of a conflict. Ecology is not given the level of respect that it should receive. It is always sidelined – economics and politics hog the headlines – yet both of those are but subsets of the wider ecosystem. Without a healthy ecosystem we are on a downward slope to disaster. So, I hope that people will read this book, maybe because they are outraged at the killing, and will then come away realising that ecology is very complex and should be treated with great respect.  

I also hope that this book will convince people who hold very firm opinions – opinions that are often amplified by the bubbles in which we tend to linger – that people with differing views may well share many of the same values as themselves. And that to begin discussion at the common ground is the foundation of progress. Argument should not be about winning, but about making things better. Remember, it is quite possible that some of the things you know are wrong. A friend of mine turned up at a conference recently with a t-shirt saying ‘Don’t believe everything you think’. We should be humble enough to recognise we might be wrong.  

Are you currently working on any other projects that you can tell us about?

As I write this, the lovely people at the publishers Graffeg are hoping I will stop promoting Cull of the Wild and finish the two books I owe them: one on bats and the other on nocturnal nature. I have another narrative nonfiction brewing – about as different to this book as imaginable. Something which will hopefully bring laughter into our love of nature. 

Cull of the Wild cover showing a red squirrel on the right facing a grey squirrel on the left, with a blue sticker on the cover saying 'signed copies.'

Cull of the Wild is available to order from our online bookstore.

Book Review: Of Cockroaches and Crickets

***** An amusing and light read

Of all the insects that have a PR problem, cockroaches must rank very high. That, however, did not stop German entomologist, journalist, and filmmaker Frank Nischk from spending a year-long internship studying them. In this book, he regales the reader with stories of his time in the lab and the field studying first cockroaches and later crickets. A light and breezy read despite the serious undercurrent of biodiversity decline, Of Cockroaches and Crickets turned out to be an entertaining read.

This book was originally published in German in 2020 as Die fabelhafte Welt der fiesen Tiere by Ludwig Buchverlag and has been translated into English by Jane Billinghurst who frequently works with Greystone Books. Carl Safina contributes a short foreword that cracked me up and immediately set the tone. The book is effectively a memoir of Nischk’s early years studying for his undergraduate and doctorate degrees in the mid-nineties, told in 18 short chapters in two parts. His subsequent career pivot to documentary filmmaking only receives passing mention.

Cockroach photographed in Australia.
Cockroach by Patrick Kavanagh, via flickr.

Given Nischk’s concern about biodiversity decline, and his desire to communicate to a broad audience why insects are fascinating and important, there is an irony to his undergraduate internship. He spent a year in the lab of Martin Dambach studying the aggregation behaviour of the German cockroach, Blattella germanica. By day, large groups of them bed down on their own excrement, likely attracted by pheromones released by the faeces. The irony? Nischk’s internship was funded by biotechnology giant Bayer which was hoping to isolate the chemicals responsible for putting the cockroaches in sleep mode to develop a pheromone-based cockroach trap: “the exterminator’s holy grail” (p. 25).

For his subsequent doctoral studies, Nischk got his conservation priorities in order. Staying with Dambach, he turned to crickets and spent time in Ecuador recording their songs. Next to discovering species new to science, this is his entry into the fascinating field of soundscape ecology or ecoacoustics. A small cadre of ecologists has been recording soundscapes of natural habitats. Bernie Krause (not mentioned here) is one particularly well-known example. By comparing recordings made years or decades apart they have shown how natural soundscapes are changing and often disappearing due to human encroachment. Others are hoping to train software to analyze recordings and identify species by their calls. If scaled up, the dream is to have passive acoustic monitoring stations in biodiversity hotspots around the globe.

This backbone of his research is livened up with personal anecdotes and interesting asides. A friend’s call about a wasp infestation in her kitchen drawer is an excuse to introduce the 18th-century French entomologist Jean-Henri Fabre who was one of the first European naturalists to systematically collect and study butterflies, beetles, and wasps. Getting stung by a bullet ant in the rainforest of Ecuador leads to an aside about the late entomologist Justin O. Schmidt, the man who got stung for science (and wrote a fine book about it too). Tracking down a particularly loud cricket in Ecuador is the starting point for an unusual case where entomologists helped to defuse international political tensions between the USA and Cuba (this story has a surprising twist that I will not spoil here). A botched attempt to eradicate cockroaches that escape his experimental setup backfires most spectacularly, while fieldwork in the tropics is always fodder for amusing cultural misunderstandings and sober reflections. There is a nice mix here that never dwells on any one topic too long and makes for a book that is hard to put down.

Cricket on a leaf in a garden.
Cricket by Dean Morley, via flickr.

The third and final part is, perhaps surprisingly, comparatively the weakest of the book. In four chapters Nischk muses on the biodiversity crisis, particularly the still poorly understood decline of insects, and discusses examples of individuals and organisations who are creating and protecting wildlife habitat. Probably most interesting are the little-known grassroots initiatives in Ecuador that are undertaken by villagers and farmers turning to ecotourism. But is this really the answer? Or does it merely perpetuate the idea that nature can only be protected if it has monetary value? You will not find a critical or comprehensive analysis of wildlife conservation here. There is also an odd focus on projects in the USA, e.g. the High Line in New York, the Xerces Society, Joan Maloof’s Old-Growth Forest Network, and the Yellowstone to Yukon Conservation Initiative. I wonder if this was added for the English translation. There is no mention of e.g. the European Natura 2000 network of protected areas or E.O. Wilson’s bold call to protect half the planet, and only passing mention of the German environmental organisation NABU or the practice of rewilding. Putting aside such nitpicking, none of this takes away from his genuine concern about the ongoing loss of biodiversity nor from his conclusion that the key to protecting species is protecting their habitat.

Overall, Of Cockroaches and Crickets is an amusing and light read that I devoured in a day. Nischk offers a nicely balanced blend of interesting natural history, amusing personal stories, and captivating scientific research. Whether it is flies, wasps, or rats, we need more books that celebrate those species we all too readily dismiss as pests.

Of Cockroaches and Crickets book cover.Of Cockroaches and Crickets is available from our online bookstore.