Author interview with Stephen Moss: The Starling

The Starling A Biography cover.Marking the sixth volume in Stephen Moss’ Bird Biography series, The Starling delves into the fascinating life of one of our most talented and surprising birds. Starlings are renowned for their iridescent plumage, impressive vocal abilities and stunning murmurations, and this captivating tale explores how they’ve shaped our world, inspired art and music through the decades, influenced the agricultural industry and more. 

Stephen Moss portrait.Stephen is a naturalist, author and broadcaster well known for his work with the BBC Natural History Unit working on landmark programmes such as Springwatch and The Nature of Britain. He currently holds the position of senior lecturer in creative writing at Bath Spa University and is also president of the Somerset Wildlife Trust. 

Stephen recently took time out of his busy schedule to answer some of our questions about his latest book The Starling, including what inspired him to write about this species, how his opinions of this bird has changed throughout the writing process and more. 


The Starling marks the sixth volume in your bestselling Bird Biographies series. What inspired you to turn your attention to Starlings for this latest volume?   

I always look for three things when it comes to choosing a subject for a bird biography. 

First, does the species show some unusual or specific behaviour or habit which mark it out from other species? For example, the Robin’s habit of singing and holding territory in winter, the Wren’s bizarre breeding behaviour where the male builds several ‘cock’s nests’ for the female to inspect, or the Swallows’ epic migrations. 

Second, does it have a strong cultural presence – in music, literature, mythology, popular culture and day-to-day society? Examples include the Robin’s association with Christmas, the Swallow’s position as a herald of spring, the Swan’s royal connections, and the owl’s reputation as a mysterious bird of the night. 

And third, does the species relate to both me and the reader? Basically, is it one of Britain’s favourite birds, and if so, why? It also helps if I like the bird and have had a lifelong connection with it – which is true of all the species I have featured in the series so far – as then I can add personal anecdotes from my life as a birder. 

Just like the previous subjects in the series – the Robin, Wren, Swallow, Swan, and owl(s), the Starling fits the bill in all three of these categories. It is a very sociable bird – more so than almost any other species during both the breeding season and in autumn and winter, when they gather in those famous murmurations. There are also plenty of historical and cultural references, including the fact that Mozart kept a pet starling which used to whistle his new compositions, and which he mourned in a solemn burial ceremony after it died. Most of all, we have a love-hate relationship with this bird, giving it a real ambivalence in our eyes – which makes it a fascinating subject for a book. And as you mention later on, like most of us, I grew up with Starlings. I now live on the Somerset Levels, just a stone’s throw from the famous winter gatherings, which I have now enjoyed for almost twenty years.  

Starling by nmahieu, via flickr.
Starling by nmahieu, via flickr.

This book explores how starlings have influenced both farming and the arts throughout the years – were there any discoveries that surprised you on this line of inquiry?  

The biggest surprise was that the widely known and oft-repeated story that Starlings were introduced into North America by a German emigrant who wanted to bring every bird mentioned in Shakespeare to the New World turns out to be mostly a myth! He wasn’t German (though he did come from a high-ranking New York family of German descent); he had no interest in Shakespeare, and most importantly he wasn’t the first person to release Starlings into the wild in the USA – that happened over 20 years earlier. Check out the chapter on ‘The Global Starling ‘to find out more details! 

 

You mentioned having been around starlings for most of your life in the first chapter. Has your research and writing of this book altered your opinion of these birds?  

Definitely! I do have a real soft spot for Starlings – though I also agree with the expert scientist Chris Feare that they look like second-hand car salesmen when they walk! I love the fact that they live alongside us but don’t really care about us – just going along with their day-to-day lives.  

I also discovered a lot more about the science of their murmurations, and also about our human response to them, which ranges from loathing to love.  

Finally, their ability to adapt to locations around the world where they have been introduced – including South Africa, Australia and New Zealand as well as North America – is also very interesting, and again tells us a lot about our ambivalent attitudes towards these fascinating and often overlooked birds. 

Starling by Keith Ellwood via flickr.
Starling by Keith Ellwood via flickr.

Starlings are often regarded with distaste and annoyance by many. Are there any common misconceptions impacting people’s perceptions of this overlooked species? And how can we move towards acceptance, and ideally, appreciation of these birds?  

As my old friend and colleague Bill Oddie famously said, people think of Starlings as ‘bird table bullies’! And yet those same people who don’t like them in their garden love watching their spectacular murmurations! They are also often overlooked – like all common, familiar and widespread species, we tend to take them for granted.  

Yet paradoxically, as we saw when another common and familiar bird, the House Sparrow, started to go missing from our towns and cities, when we begin to lose a species, we do begin to appreciate them more!  

Starlings are in decline, and almost all urban roosts like the ones in the middle of London, including the famous one in Leicester Square that I used to see when I was growing up, are no more. Fortunately roosts in the wider countryside do appear to be making a bit of a comeback.  

If anyone still doesn’t like Starlings, I would urge them to come down to Somerset on evenings between November and February, where we still get a quarter of a million or more Starlings murmurating together before going to roost on the Avalon marshes – it really is truly incredible!  

 

How do you think the historical representation of ‘pest species’, such as Starlings, has affected our attitudes towards them, and how do you think we should approach the somewhat controversial topic of conservation vs agriculture vs pest control in the future?  

I don’t like the word ‘pest’, though it is at least a bit less loaded than ‘vermin’! As I discuss in the book, Starlings have always been unpopular with farmers, even though they predate on many so-called insect pests in the soil, such as leatherjackets. They do eat fruit and can also cause problems with their droppings, but overall, I think they are less harmful than many people think.  

I also believe that we tend to dislike species, especially those that live alongside us, that remind us of ourselves. This includes gulls, crows and of course starlings, which often seem to behave rather like us, and we don’t like that! 

Starling Murmuration - Eastbridge.
Starling Murmuration – Eastbridge by Airwolfhound, via flickr.

I, along with many of your readers, will be excited to see where this series will go next. Have you begun working on the next book? And can you give us any clues as to what comes next?   

I have, although I am taking a bit of a break from writing as I am trying to get a better work-life balance and travel to see birds around the world – including Starlings (exotic species in Africa and Asia as well as our own familiar species!). I have long wanted to do the House Sparrow, as it has such a fascinating historical relationship with human beings, and lives closer alongside us than any other species of bird. As a result – just like the Starling – we are very ambivalent towards it.  

When we chose the Starling, we had a shortlist of three, the others being Skylark and Kingfisher; yet bizarrely, when I did an X/Twitter poll amongst 2,000 people, the vote split almost exactly to one third for each!  

I can’t do some species that readers of the series have suggested, either because, like the Blackbird and Blue Tit, they don’t have very unusual or distinctive behaviour or cultural importance; or because others have already written similar (and excellent) books – such as Sam Lee on the Nightingale and Charles Foster and Sarah Gibson on the Swift.  

Currently I am keen on either the Peregrine Falcon or the Puffin, both of which have really strong biological and cultural aspects to their lives – I’d be fascinated to hear which of these species NHBS customers – and your excellent staff – think I should choose! 


STEPHEN MOSS is a lifelong birder, broadcaster and bestselling author, whose books have appeared in almost twenty different countries. The Starling is the sixth volume in his celebrated ‘Bird Biographies’ series, following the Robin, Wren, Swallow, Swan, and Owl – and of course The Twelve Birds of Christmas, which featured the dozen species in the famous festive carol. In total these have sold over 100,000 copies, and been translated into Dutch, German and Chinese. 

The Starling A Biography cover.

The Starling is available to pre-order from our bookstore here.

Garden Wildlife Watching: Sabine’s Trail Cameras

Although widely used by ecologists, trail cameras are popular with naturalists, wildlife watchers and those who are simply curious as to what creatures can be found in their gardens. They allow us to monitor the wildlife around us without impacting their natural behaviours and can capture both images and video during the day and night, with the help of infrared imaging technology. Trail cameras are constructed to endure harsh outdoor conditions, including wind, rain and temperature fluctuations, making them robust and long-wearing.  

With this technology we can observe wildlife that we may not otherwise be able to see. They allow us to watch easily startled species, like deer, or those that are nocturnal, like foxes. We can also record and observe a much broader, and more natural, range of behaviours without disturbance from humans. 

Our colleague, Sabine, recently captured some excellent footage on two trail cameras around her home using the Num’axes PIE1060 Solar Wi-Fi Trail Camera and the Browning Strike Force Pro1080. The cameras were placed in her orchard, which has a small stream, and were left to record for around four months and one year respectively, capturing some exciting finds.  


Here’s what Sabine found:

A pair of Magpies (Pica Pica) drinking and bathing in a stream, a natural behaviour which can easily be disturbed by human presence.  

 

The Browning detected Roe Deer (Capreolus capreolus) during both the daytime and night time around the orchard. Deer are easily startled by human presence and trail cameras allow us to observe their natural, relaxed behaviours 

 

Another day and night comparison of Pheasants (Phasianus colchicus). Videos recorded by the trail camera gave us a great insight into their breeding behaviours, not commonly seen in the flesh 

 

A possible Bank Vole (Myodes glareolus) emerging from its burrow. Usually sticking to their underground burrows, or dense surrounding vegetation, a carefully placed trail camera can even be used to capture the more unusual species found across the British countryside. 

 

A Grey Squirrel (Sciurus carolinensis) perched on a fence post to have its morning meal of a large nut. Another example of natural, undisturbed behaviour of a typically wary species.  

 

For more information on how to choose a trail camera, see our buyers guide and our trail camera blogs on the Conservation Hub. 

 

This Week in Biodiversity News – 30th September

Environment 

Planet Earth may have surpassed seven of its ‘planetary boundaries’. These boundaries are described as physical or biological systems and processes that contribute to the stability of life on Earth and its supporting functions. There are nine boundaries in total, which are considered breached when the process can no longer function – these thresholds have been reached with six boundaries, and number seven, ocean acidification, is close to its threshold. Breaching this seventh boundary would reduce the efficiency of the ocean as a carbon sink, threatening marine ecosystems and global survival. 

The first assessment of marine protection has shown that EU marine protected areas (MPAs) only provide minor security against harmful marine activities. This study revealed that over 86% of European MPAs have worryingly low levels of protection, with mining, dredging and bottom trawling present in most protected areas in the region. The study concludes that radical changes will be required to meet EU conservation targets, including the goal of protecting 30% of its oceans by 2030. 

A brown otter laying on rocks on the river bed
Image by Alison Day via Flickr

London Mayor Sadiq Khan has launched a ten-year restoration plan to clean up London’s rivers. Inspired by New York’s Oyster project, the Mayor hopes that by encouraging Eurasian Otters, Water Voles, eels and mayflies throughout the capital, water quality will subsequently improve. Khan is also investigating the reintroduction of oysters, which were historically present in the Thames, as a means of cleaning the degraded environment. 

 

Climate Crisis 

Seabirds are having to fly further to find food sources due to the melting of sea ice in Antarctica. Researchers analysed the foraging data from over 2,400 trips made by seven South Georgian seabird species from 1992 to 2023. They found that receding sea ice in the region is impacting species like Albatross and petrels as they now have to travel greater distances in search of breeding grounds and food. The data suggests that altered patterns of food availability could impact the presence of these birds in certain ecosystems however, with sea ice at a record lows, further research is needed to better evaluate the long-term impacts on seabirds. 

an albatross with a pink beak, white body and brown wings. it is sitting on the surface of the water
Image by Bernard Spragg via Flickr

Young coral colonies bred using IVF technology have survived a record marine heatwave. These cultivated colonies were planted onto multiple reefs in the US and the Caribbean to restore degraded habitats in the region. Last year, the Caribbean experienced a mass bleaching event which resulted in significant losses of the reef– only 25% of older corals survived, however over 90% of cultivated corals remained healthy after the event, and researchers are hopeful that this technique may provide coral species with a greater chance of adapting to heat stresses over time. 

 

Wildlife 

The EU has made the first move toward legalising wolf culls. The proposal was put forward by the European Commission late last year, and this month member governments, including Germany and France, have voted in favour to downgrade the ‘strictly protected’ status of the Eurasian Wolf to ‘protected’ under the Bern Convention 1979. This amendment would allow the EU to revise the Habitats Directive to further ease the protection of the species, which currently permits culls only with specific authorisation in extenuating circumstances.  

a brown and cream speckled butterfly on a blade of grass, it has some spots and is covered in dark brown hair
Image by Nikk via Flickr

Butterfly Conservation have announced a ‘butterfly emergency’. This year’s Big Butterfly Count recorded the lowest ever numbers since the initiative began 14 years ago, with an average of seven butterflies per count, compared to last year’s twelve. Partially due to a wetter-than-average spring, late summer and a long-term downward trend, the results indicate a significant decline in British butterflies and day-flying mothsButterfly Conservation has responded by urging the government to ban neonicotinoid pesticides harming these indicator species for good.

Wild and Wonderful: A Spotlight on Endangered Mammals in Britain and Ireland

This blog focusses on forgotten species; those that are extinct, endangered or just urban, small and under-recorded. With climate change, habitat loss and invasive species threatening our native mammals, highlighting their importance is vital in driving their conservation, so we have chosen to spotlight three of the UK’s endangered mammals, discussing their biology and characteristics, current conservation initiatives and what the future might look like for these animals.  


Eurasian Beaver (Castor fiber)  

A beaver is swimming through a body of water leaving a wake behind it. Only the nose, top of the head and back are visible. It is covered in brown fur, with small brown ears, small dark eyes and a large button nose.
Image by Gertjan van Noord via Flickr

Habitat: Freshwater, particularly streams and rivers near woodland. 

Diet: Aquatic plants and grasses during warmer months, tree bark and shoots during winter. Preference for willow, Aspen, Alder and fruit trees. 

Conservation Status: Critically endangered in England, endangered in Scotland. 

Distribution: Free-range populations in the River Tay, River Otter and Knapdale, Scotland. Enclosed populations in Kent, Essex and the Forest of Dean. As of 2023, Scottish beavers have established 424 territories, housing up to 1,500 individuals. 

Breeding: Between December and April. Birth in early summer of up to six kits, sexually mature at two years old.  

Description: With distinctive orange, chisel-like teeth and a flat, scaled tail, beavers are instantly recognisable. Similar in size to a medium dog with shorter legs and a rounder body, the fur of a beaver ranges from brown to black. Once widespread in the UK, the Eurasian Beaver was historically persecuted for medicinal and cosmetic purposes. The species was hunted for fur, meat and the oil from its scent glands, resulting in extinction by the 1600’s. 

Did you know? High iron content in the enamel of their teeth gives them their distinctive orange colour. This addition provides the teeth the extra strength that is required for felling trees and eating.  

Conservation of Eurasian Beavers 

Beavers are talented ‘engineers’, able to transform wetland and freshwater environments. Through the alteration and modification of these habitats, beavers can create complex wetlands, ponds and nurture more resilient ecosystems. Their dams provide a natural filtration system for freshwater landscapes and water quality is shown to increase as it passes through dam complexes, helping to reduce diffuse pollution in the area. Through improved water storage, beaver activities can also maintain water flow to drought-ridden landscapes, increasing the habitat’s resilience to climate change related conditions. 

A mound of sticks and twigs laid by beavers across a river to create a dam. The trees in the background are yellow and autumnal
Image by Tom Kelly via Flickr

Environments altered by beaver presence host significantly higher diversity compared to those without. Tree felling can shed more light onto aquatic areas, encouraging growth of wetland vegetation. Feeding on larger, fleshy plants can favour smaller, slow-growing species in the surrounding habitat, leading to more abundant, diverse plant communities in the long-term. Species richness and overall abundance of small mammals, amphibians and bird species are also found to be higher in areas close to beaver dams.  

After 400–500 years of local extinction, beaver reintroduction has been gathering traction in the UK.  There are a number of reintroduction projects trialling their release, including the 2009 Scottish Beaver Trial in Knapdale Forest (which introduced around a dozen beavers to over four hectares of land) and the Devon Beaver Project which introduced one family group to an enclosed area in West Devon. England’s first wild project, The River Otter Beaver Trial, was founded due to the discovery of wild beavers in the region. This 5-year project observed eight family units over 28,700ha and is seeking to demonstrate the effect of beavers on other wildlife, local landscapes, water flow, water quality and local communities. Further reintroductions across the country have established both wild and enclosed populations of this keystone species.  

Looking Forward 

Reintroduction projects across the UK have been successful. Populations are breeding successfully and have been expanding their territories. However, there is cause for concern with the potential of conflicts to arise over land management.  It is likely that, with expansion, there will be human-wildlife conflict with landowners and other stakeholders in the future. The impact of beaver activities on the environment can cause flooding of pasture, risk to crops and the felling of trees can cause harm to livestock and structures. Natural England has advised a paced approach to beaver reintroduction, minimising impacts to land use, infrastructure, livelihoods or environmental features while maximising benefits for the environment. 

 

Water Vole (Arvicola amphibius) 

A small brown water vole with a long tail is standing on the edge of a shallow body of water. It is looking to one side, and is surrounded by small plants and foliage.
Image by Peter Trimming via Flickr

Habitat:  Grassy banks along slow-moving rivers, canals and streams. Marshes, reedbeds, wet moorland, wetland.  

Diet: Grass and waterside vegetation. Wetland plants in spring and summer. Roots, rhizomes, bulbs and bark in autumn and winter. Occasional invertebrates. 

Conservation Status: Endangered in England and critically endangered in Wales.  

Distribution: Found throughout mainland UK. Absent from Northern Ireland and most offshore islands. Estimated population of 132,000, range and numbers have declined by 94% from historical populations. 

Breeding:  March–October. Breed in spring, producing up to four litters a year. 

Description: A small rat-sized rodent, the Water Vole has chestnut brown hair covering their entire body and tail, with a round nose and nearly hidden ears. This semi-aquatic rodent was historically widespread until the population saw a decline, resulting in nearly 90% reductions by 1998.  

Habitat loss, degradation and fragmentation are key drivers of Water Vole declines in the UK. General infrastructure development, along with urbanisation of flood plains, have resulted in extensive loss of habitat for this species. Partnered with loss of vegetation and trampling around freshwater banks from grazing livestock, large areas of freshwater habitat are now unsuitable for voles. The unintended introduction of American Mink (Neovison vison) has also been pivotal in the collapse of Water Vole populations across the UK. Initially brought to England for fur farming, escaped mink have predated heavily on this species.  

Conservation of Water Voles 

Through grazing activities on grasses and rushes at the water’s edge, Water Voles manipulate their habitats, much like beavers but on a smaller scale. This manipulation can make space for a new community of wildflowers and grasses, attracting a host of invertebrate species to an area. As a valuable prey species, elevating Water Vole populations can support predators in the surrounding environment. Barn Owls (Tyto alba), Otters (Lutra lutra) and Pine Martens (Martes martes) are examples of native predators that would benefit from the repopulation of Water Voles.  

A chocolate-brown mink with a patchy white chin and chest is standing behind a small patch of grass staring at the camera.
Image by Ryzhkov Sergey via Wikipedia Commons

A number of regional wildlife trusts have undertaken Water Vole recovery projects to support their repopulation in UK waterways. These typically involve recording and monitoring existing Water Vole activity, habitat enhancement, coordination of mink control, and in some cases, reintroduction of the species: 300 voles in the Yorkshire dales, over 600 in Essex, 200 in Gwent and over 1,000 individuals in Kielder Forest. The Forestry Commission has also pledged to make changes in Kielder Forest; improving the landscape by refraining from planting trees on river edges, providing much-needed habitat. In order to protect Water Vole settlement, the species is protected under the Wildlife and Countryside Act (1981), the UK Biodiversity Framework, and is listed as a priority species on the UK Biodiversity Action Plan. 

Looking Forward  

Reintroduction efforts across the UK have had mixed results. A period of growth was observed following initial releases in Nottinghamshire, which has now slowed. Overall occupancy from 2006–2018 has declined by 23%. It is thought that the continued pressure of habitat loss and mink predation is preventing populations from settling successfully. Responding to the poor establishment of Water Vole populations, recovery projects are enhancing existing freshwater habitat and building new areas to establish populations. Breeding and release sites will also be created to facilitate the successful reproduction of Water Voles in a safe environment, away from predation. In addition to habitat enhancement, more widespread mink control is also expected.  

 

Pine Marten (Martes martes) 

A pine marten is standing on a fallen tree in a green field. It has a long, fluffy tail and its fur is chocolate brown. Under the chin and chest is a creamy yellow colour and it has large pointy ears.
Image by Caroline Legg via Flickr

Habitat: Native woodland, conifer plantations. 

Diet: Small mammals, carrion, birds, eggs, fruit and invertebrates. 

Conservation Status: Critically endangered in England and Wales, least concern in Scotland.  

Distribution: Widespread and relatively common in Ireland. Populations recovering in the Scottish Highlands, some isolated populations in southern Scotland.  Populations in northern England and Wales are fragmented and small. Populations estimated at 1,600–8,900 in Britain and Ireland.  

Breeding: Mating season is during the summer months. One litter per year, born in March or April. Kits are fully grown at six months and sexually mature by three years old.  

Description: Often confused with mink, Weasels or Stoats, the Pine Marten is a fellow member of the Mustelid family. Characterised by its chocolate brown fur and a distinctive, uniquely shaped light-yellow bib around the throat and chest, this elusive species has a long, bushy tail and large, rounded ears. Around the size of a domestic cat, Pine Marten are larger than both Weasels and Stoats and can be distinguished from mink by their chocolate coat.  

Pine Marten populations underwent a major decline in the 19th century due to persecution by Victorian gamekeepers on sporting estates. Extensive habitat loss and fragmentation is another factor which contributed to the decline of these species in the UK.  

Conservation of Pine Martens 

The reintroduction of Pine Martens is favoured by many across the UK. The species is valued for their natural control of the invasive, non-native Grey Squirrel (Sciurus carolinensis), which can account for up to 14% of a Pine Martens diet. This predation allows the native, endangered Red Squirrel (Sciurus vulgaris) to take hold. Eradicating competition from Grey Squirrels, and reducing the risk of the squirrel pox virus, has allowed the Red Squirrel to successfully repopulate areas around Pine Marten territory. 

A red squirrel is perched on tree roots looking at the camera. It has bright orange fur. an upright fluffy tail and very fluffy ears.
Pine Marten reintroductions positively impact Red Squirrel populations. Image by Joachim Dobler via Flickr

The Two Moors Pine Marten Project, the South East Pine Marten Restoration Project, Back From the Brink  and Martens on the Move are programmes founded to support the expansion of Pine Martens in England. A total of 35 individuals have been relocated from Scotland to the Forest of Dean and the Wye Valley, and further reintroductions are expected to take place on Exmoor and Dartmoor National Parks later this year. Other projects aim to facilitate reintroductions through the enhancement of key habitats (Martens on the Move) or to undertake surveys and monitoring to inform on species distribution (Back from the Brink).  

By 2017, around 50 Pine Martens had been relocated to woodland in mid-Wales from their original home in Scotland. The population was radio tracked throughout the first year, which monitored their movement and behaviour. The group have established a viable population, breeding every year since reintroduction.  

Looking Forward 

The future of Pine Martens in the UK is promising. Monitoring of existing projects shows successful breeding and expansion from Scotland into Northern England. It is expected that more Pine Martens will be released in the Forest of Dean, in addition to an estimated 40 individuals to be released with the Two Moors Restoration Project in autumn 2024. It is hoped that, with further expansion, populations may link with Welsh Pine Martens, boosting connectivity and genetic diversity. 

However, as populations continue to expand, there is an increasing risk of conflict. With greater human populations, greater infrastructure, and greater exposure to protected species, concerns may arise among the public. The species are known to find their way into chicken coops and pheasant pens, damaging livestock and causing conflict with local farmers. The Vincent Wildlife Trust, Natural England and NatureScot recommend sufficient Pine Marten monitoring, active engagement and open communication with stakeholders to mitigate potential conflicts before they arise.  


For more information on British mammals and their conservation, visit The Mammal Society website.

 

 

The Big Butterfly Count: NHBS Staff Results 2024

Each year, Butterfly Conservation urges the public to venture outdoors and record their local lepidoptera populations with the Big Butterfly Count – a UK-wide survey aiming to assess the health of butterflies and day-flying moths. The count involves recording the number and species of butterflies in a chosen area for fifteen minutes and uploading results to their official website.  

There are around 130 day-flying macro moths and 59 species of butterfly in the UK. These highly sensitive animals are key indicators of environmental health and play a crucial role in pollination across the country. The latest State of the UK Butterflies report, an assessment on British butterflies, found that the group has declined by 80% since the 1970s. The Big Butterfly Count allows the health and trends of these species to be assessed, improving our understanding of their conservation and threats.  

This year’s count took place between Friday 12th July and Sunday 4th August, and the results from nationwide counts can be found on Butterfly Conservation’s interactive map. Over 140,000 counts were taken during this time, recording nearly 1,000,000 butterflies. Gatekeeper (Pyronia tithonus), Meadow Brown (Maniola jurtina), Large White (Pieris brassicae), Small White (Pieris rapae) and Peacock (Aglais io) butterflies were the most recorded species across all data points, accounting for over 670,000 sightings. 

This years count revealed the lowest numbers on record, and has led to the announcement of a nationwide ‘butterfly emergency’. On average, seven butterflies and day-flying moths were seen per count, half of last years average. This years count observed significant downward trends in the group, with around 81% of species showing declines, and 600,000 less butterflies recorded than last year (which equates to around a third of 2023’s total observations). 9,000 counts did not record any butterflies, which is the highest number recorded in the history of the count.

We participated in the Big Butterfly Count this year, and are excited to share our results below. 


Staff results

Sabine

a brown and orange butterfly sun bathing in a bush
Gatekeeper by Sabine
  • 3 Small White (Pieris rapae 
  • 2 Red Admiral (Vanessa atalanta 
  • 1 Gatekeeper (Pyronia tithonus) 
  • 1 Ringlet (Aphantopus hyperantus) 

 

Guy

Red Admiral by Guy
  • 1 Small Skipper (Thymelicus sylvestris) 
  • 2 Green-veined White (Pieris napi) 
  • 1 Large White (Pieris brassicae) 
  • 7 Gatekeeper (Pyronia tithonus) 
  • 8 Meadow Brown (Maniola jurtina) 
  • 2 Peacock (Aglais io) 
  • 1 Red Admiral (Vanessa atalanta 

 

Laura

a small butterfly with red patches sits on top of a cluster of small flowers
Red Admiral by Laura
  • 5 x Red Admiral (Vanessa atalanta 
  • 4 x Peacock (Aglais io) 
  • 2 x Large White (Pieris brassicae) 
  • 1 x Small Copper (Lycaena phlaeas) 
  • 1 x Speckled Wood (Pararge aegeria) 
  • 1 x Painted Lady (Vanessa cardui) 
  • 1 x Comma (Polygonia c-album) 

 

Elle

A creamy white butterfly feeding on a thistle
Image by Steve Byrne via Flickr
  • 3 x Small White (Pieris rapae)

 


To find out how you can support UK butterfly conservation and to find your local branch, visit the Butterfly Conservation website. 

 

This Week in Biodiversity News – 16th September

Environment 

The National Trust has reached a significant nature target a year early. The charity strived to restore 25,000 hectares of crucial habitat across the UK by 2025, including peatland, woodland, wetland, meadow and saltmarsh, and succeeded in doing so in August this year. The restoration comes as a response to climate change and national conservation targets and seeks to expand meadows and woodland to create a connected network for wildlife.  

Eighty Water Voles have been released to restore ancient landscapes in Cornwall.  Considered ‘ecosystem engineers’ these mammals are known to positively impact soil health and plant diversity through grazing and enhanced nutrient transportation. The voles were released along the River Fowey to improve the surrounding wetland habitat created in 2022. A further 120 have been released near Megavissey, and more releases are planned for spring next year. 

A light brown rodent is sat on a river bank underneath grasses, it has small black eyes and a small brown nose
Image by Peter Trimming via Flickr

Three years of restoration work have seen the return of endangered birds in Hertfordshire. Work has come to a close on the Ashridge Estate, the largest woodland maintained by the National Trust – over 24 hectares have been restored by clearing dense areas of plantation, which has allowed more light to reach the ground through the canopy. Greater access to sunlight has improved biodiversity and the availability of food sources, and the clearing will provide suitable conditions for many breeding birds, including Spotted Flycatchers which have been spotted on the estate after several years of absence.  

 

Conservation

Conservationists are relocating Florida’s Queen Conches in a bid to support their reproduction. This iconic mollusc has undergone significant declines in recent years, accelerated by increasing ocean temperatures causing lethargy and infertility for individuals residing in warmer, shallow waters. By relocating these gastropods to deeper, colder waters, researchers are providing new mating opportunities in a more suitable environment. Listed as threatened under the Endangered Species Act, this project is helping to ease reproductive pressures on this species. 

A grey badger standing on a bed of grass and clover
Image by Andy Morffew via Flickr

In August, the UK government announced a goal to end all badger culls by the end of this parliamentary run. The news was announced as part of a new scientificallyinformed and evidence-based eradication strategy for bovine tuberculosis, which hopes to eradicate the disease by 2038. In the past decade, over 230,000 badgers and 278,000 cattle have been slaughtered, costing the taxpayer over £100m each year. Badgers will instead be vaccinated and released, and a dedicated task force will be formed to ramp up vaccination rates.  

 

Wildlife

Five species of seabird have been added to the UK red list. Arctic Tern, Great Skua, Leach’s Storm Petrel, Common Gull and Great Black Backed Gull have joined the list of species most in need of conservation, following population declines due to a number of pressures including climate change, habitat loss and unsustainable fishing. Over 30% of all British birds are currently on the list including Kittiwakes, Puffins and Arctic Skuas, among others.  

A large bird with mottled brown feathers and white patches on the palm of the wing
Image by Kjetil Rimolsronning via Flickr

Researchers have found promise in the medicinal plants used by critically endangered Western Lowland Gorillas in Gabon. The group studied the tropical plants eaten by gorillas in Moukalaba Doudou National Park and found four trees also used by local healers. They are high in antioxidants and antimicrobials, and one tree is a promising candidate for tackling superbugs. All four species (Fromager trees, Fig Tree, African Teak and Giant Yellow Mulberry) show activity against a resistant strain of E. coli and contain chemicals with medicinal effects useful for treating a range of ailments.  

 

The NHBS Guide to Grasshoppers and Bush-crickets

Here in the UK, we have 11 species of grasshopper and 23 species of cricket (around ten of these being bush-crickets), both subfamilies belonging to the order Orthoptera. Although similar in appearance, the two can be separated by their antennae – grasshoppers have short, stout appendages and bush-crickets have longer, thinner antennae. Bush-crickets also have a larger body size than grasshoppers, growing up to 5cm in length, and females have a distinctive ovipositor used to lay eggs.  

Here, we look at a few species of grasshoppers and bush-crickets found in the UK, detailing ways to ID them and where they can be found.  


Common Field Grasshopper (Chorthippus brunneus) 

A brown grasshopper is sat on a small twig, it is dull in colour but has a vibrant yellow-orange abdomen under a darker wing
Image by Gilles San Martin via Flickr

ID Notes: Up to 2.5cm in length. This grasshopper is usually a mottled brown colour, but can vary from brown to grey, orange and purple. It has barring on the sides, and a very hairy underside which is the most straightforward way to identify this species. It is winged and able to fly. Their song consists of short, single chirrups repeated at short intervals. 

Distribution: Common and widespread throughout Britain. Common Field Grasshoppers can be seen from May to October on short vegetation in dry, warm days. They can be found in grassy areas including farmland, grassland, heathland, moorland, towns and gardens.  

 

Meadow Grasshopper (Chorthippus parallelus) 

A grasshopper on a green stem, it has a vibrant pink head, thorax and back legs. It has a green underbelly and black/yellow striping on its abdomen. Its wings are very short.
Image by Gilles San Martin via Flickr

ID Notes: Up to 2.3cm in length. Meadow Grasshoppers are usually green in colour, with some individuals brown or pink-purple coloured (pictured above). The wings are often brown and are long in males, whereas female wings are short and do not reach the end of the abdomen. This species has distinctive black knees and a dark brown stripe running across the flank to the eye. They are similar in appearance to Common Field Grasshoppers, but lack a hairy underside, which can be used to distinguish them from one another. Their song is a burst of around ten chirrups, making a ‘rrr’ sound.  

Distribution: Common and widespread throughout Britain. Meadow Grasshoppers can be seen from April to October in damp pastures with long grass. They can also be found in meadows, grassland, heathland and moorland.  

 

Common Green Grasshopper (Omocestus viridulus) 

A green grasshopper is standing on a bed of moss, it is light green in colour with dark brown striping on its abdomen
Image by Billy Lindblom via Flickr

ID Notes: Up to 2.3cm in length. As the name suggests, this species is mostly green in colour, but males can also be olive brown. Lines on the shoulders are incurved and white or cream in colour. Common Green Grasshoppers are winged and can fly, but their wings do not exceed the body’s length. They produce a long, loud ticking song which can last for 20 seconds or more and is reminiscent of a fast-paced freewheeling bicycle.  

Distribution: Common and widespread throughout Britain, although a little patchier in the lowlands. This species appears early in spring and can be seen from April to September. It can be found in coarse, moist grass in meadows, woodland rides, hillside pastures and farmland.  

 

Mottled Grasshopper (Myrmeleotettix maculatus) 

a brown and green grasshopper. it has small antennae a green head and green patches on the thorax and rear legs. the rest of the body is mottled brown in colour
Image by Frank Vassen via Flickr

ID Notes: Up to 2cm in length. This small grasshopper is most easily identified by its antennae – males’ are club-tipped, and females’ have a thickened tip. The body has several colour variations including green, brown, grey and orange. Their song is a repetitive ‘zrr’ ‘zrr’ sound lasting around ten seconds before stopping abruptly. 

Distribution: Widely distributed across the UK, but uncommon. Mottled Grasshoppers can be found from April to October in areas of dry, short grass with access to rocks or bare ground, including grasslands, heathland and old quarries.  

 

Oak Bush Cricket (Meconema thalassinum) 

A small, lime green cricket is sat on three leaflets. It has very long, flexible antennae that are trailing off of the leaf and long, yellow legs
Image by Alison Day via Flickr

ID Notes: Up to 1.7cm in length. This species is the UK’s only native, arboreal cricket. It has a slender, lime green body with a yellow-orange or brown strip running along its back. Both sexes are fully winged, with wings reaching the end of the abdomen. Females have a long, upturned ovipositor and males have a pair of shorter, rounded claspers. The males do not produce a song, but instead drum their hind legs on nearby leaves. 

Distribution: Common, found in England and Wales. The Oak Bush Cricket is common in the midlands and the south but is absent further north. It can be found in the canopy of mature trees in woods, hedges, garden shrubs and other deciduous trees from June to November.  

 

Dark Bush Cricket (Pholidoptera griseoaptera) 

A dark brown cricket is standing on a large leaf. It has very long thin antennae and a curved, pointed spine at the end of its body. Its long rear legs are outstretched, standing on another leaf
Image by Alison Day via Flickr

ID Notes: Up to 2.1cm in length. This species is typically reddish to dark brown, with occasional yellow green through the abdomen and a paler area along the top of the thorax. It has very small forewings and long, hair-like antennae. Females have a large, upcurved ovipositor. 

Distribution: Fairly common in central and southern England and Wales, where it can be found in woodland, hedgerows, grassland, farmland, towns and gardens. It can often be spotted in large numbers around bramble patches, where they are basking in the sun.  

 

Roesel’s Bush Cricket (Metrioptera roeselii)  

A brown and green cricket with long rear legs and an upturned hook at the end of the abdomen.
Image by Charlie Jackson via Flickr

ID Notes: A short-winged and usually flightless species, Roesel’s Bush Crickets are typically dark brown or yellow in colour, sometimes tinged green. They have a green face, slightly orange legs and a cream-coloured margin to their thorax, with two or three yellow spots on the side. Their monotonous song is recognisable for its long, mechanical sound. 

Distribution: Common, found mostly in the southeast of the UK, but currently expanding its range north and west. This species can be found from June to October in rough grassland, scrub, salt marshes and damp meadows.  

 

Great Green Bush Cricket (Tettigonia viridissima) 

A large green cricket is resting on a leaf. It has long, slightly yellow legs and its green wings extend further than the abdomen
Image by Gunera via Flickr

ID Notes: This large bush-cricket can easily be distinguished by its size, growing up to 7cm long. It is a vibrant green with an orange-brown stripe running the length of its back. Their wings are typically longer than the abdomen, and females have a long, downward curved ovipositor. This species has a loud, long song which sounds like a high-pitched sewing machine running continuously.  

Distribution: Common throughout south England and Wales. It can be found from May to October in scrub, woodland, grassland and heathland, with a preference for light, dry soils.


Further Reading
Book cover of grasshoppers of britain and western europeGrasshoppers of Britain and Western Europe

Paperback | June 2021

The first guide to the 261 species of orthopterans of Britain and western Europe ever published. Features stunning, detailed images and information on the distribution and identification criteria. Includes a CD with over 200 orthopteran songs to aid identification.

 

book cover for 'orthoptera and dermaptera'. Shows a large grasshopper on a plant stemOrthoptera and Dermaptera

Paperback | July 2024

A photo-based identification guide covering 28 native breeding species of the UK. This guide is part of FSC’s AIDGAP series (Aids to Identification in Difficult Groups of Animals and Plants), providing accessible identification tools for naturalists over the age of sixteen.

 

A collection of drawings of grasshoppers and crickets to help with identification in fieldGuide to British Grasshoppers and Allied Insects

Unbound | August 1999

A reliable, fold-out chart with an introduction and a key to British grasshoppers and related insects, ideal for carrying in-field.

 

The NHBS Guide to UK Centipedes and Millipedes

If you look under logs, stones or through piles of leaf litter, you may find a Myriapod (a type of arthropod with many legs, related to insects and spiders). Although these misunderstood animals may strike fear in some, these invertebrates play a vital role in maintaining our ecosystems. One of their main roles lies in nutrient cycling, where they feed on organic matter and detritus, breaking materials down into a simpler form and thus releasing nutrition back into the soil. They also play an important role, both as predators and prey, in the ecosystem’s food chain and are often celebrated for their effectiveness as a natural biocontrol agent.  

The UK has more than 50 species of centipede. This group are generally carnivorous and have around fifteen pairs of legs, with one pair present on each body segment. They have large forcipules, a pair of pincer-like, modified front legs that are used to inject venom into their prey. There are around 65 species of millipede in the UK, which can be distinguished by their shorter, more clubbed antennae, the absence of forcipules and their tendency to have two pairs of legs on most body segments.  

Here, we look at a few species of centipede and millipede that can be found in the UK, detailing ways to ID them and where they can be found.  

 


 

Common Centipede (Lithobius forficatus) 

A small orange-brown centipede on a piece of wood, curled up in a c shape
Image by Frank Vassen via Flickr

ID Notes: Also known as the Brown Centipede, Lithobius forficatus is one the largest centipede species in the UK, growing up to 3cm in length. They have long, thin segmented bodies that are a reddish-chestnut brown colour. Each segment has one pair of legs, with 15 pairs in total. They have long antennae and an elongated pair of back legs, giving the illusion of a second pair of antennae at the rear of the body. This species is best identified by thorned projections on the outer edges of the 9th, 11th and 13th segments.  

Distribution: Very common and widespread across the UK. This species can be found year-round but is most numerous in spring and autumn. They can be found in a variety of habitats, including woodland, grassland and gardens, and will spend most of the day nesting in soil or sheltered areas under stones, bark or dead wood before emerging at night to hunt for prey.  

 

Stone Centipede (Lithobius microps) 

an orangey brown centipede with many legs on a rock
Image by Keith Lugg, the British Myriapod and Isopod Group

ID Notes: Similar in colour to the Common Centipede, Lithobius microps is a ground-dwelling species that is usually chestnut brown in colour, although red and orange varieties can also be found. It is much smaller than its common cousin, reaching around 1cm in length, and its 15 pairs of legs are slightly shorter and paler than those of the Common Centipede.  

Distribution: Fairly common in the south of Britain. This fast-moving species can be found year-round in gardens and bare soil in rotting wood and under rocks and stones.  

 

Banded Centipede (Lithobius variegatus)  

A brown centipede with striped legs is crawling over a stick on muddy floor, it has many legs and a large head
Image by J. P. Richards, the British Myriapod and Isopod Group

ID Notes: Measuring up to 3cm in length, this small, yellow-brown centipede is easily distinguished by the banding on its legs – these alternate pale and dark, are usually brown in colour and are more obvious on the rear pairs. It has a dark band running centrally along its back and much larger jaws when compared to other Lithobius species.  

Distribution: Widespread and common in the UK. It can be found year-round living under stones and decaying plant matter during the day, and is commonly found in garden compost heaps.  

 

Flat-backed Millipede (Polydesmus angustus) 

a flat, armoured millipede with many legs and segments walking along muddy ground
Image by J. P. Richards, the British Myriapod and Isopod Group

ID Notes: This millipede grows to around 2.5cm in length, with a width of 4mm. It has a long, flat body with around 20 body segments, each containing between one and two pairs of legs. It is orange-brown in colour and has numerous off-white coloured legs. 

Distribution: Widespread and common in the UK. They can be found in almost any environment in which millipedes occur, with frequent sightings in woodland under dead wood and leaf litter.  

 

Striped Millipede (Ommatoiulus sabulosus) 

a brown millipede with two orange stripes running down its body on its back. it is walking across a tree stump
Image by S. Rae via Flickr

ID Notes: Up to 3cm in length, this species is one of the largest millipedes found in Britain. It is thick and cylindrical in shape, usually dark brown to black in colour. It has orange coloured stripes running the length of its body on its back, but these can sometimes appear as a series of orange patches.  

Distribution: Common and widespread throughout Britain and Ireland. The Striped Millipede can be found year-round in meadows, fields and woodland under leaf litter and logs. It is also known to climb on walls and trees to feed on algae and can be found during the day.  

 

White-legged Snake Millipede (Tachypodoiulus niger) 

A curled up black millipede, with paler almost white legs
Image by AJ Cann via Flickr

ID Notes: The White-legged Snake Millipede can grow to around 6cm in length. It is tubular-shaped with a shiny black body and contrasting white legs, of which there are around 100. Immature millipedes are brown, often with pale, longitudinal stripes down the back. It has a pointed telson (legless tail segment) at the end of its body. 

Distribution: Common and widespread in the UK. This species can be found year-round in most habitats containing millipedes, including woodland and gardens, or areas with rocks or rotting vegetation to provide cover.  

 


Additional Reading

Atlas of the Centipedes of Britain and Ireland

Paperback | January 2023

A comprehensive atlas of the 55 species of centipede in Britain and Ireland,. tThis guide provides species accounts, distribution maps and detailed colour photographs for easy identification.  

 

Key to the Identification of British Centipedes

Paperback | December 2008

An identification guide from the Field Studies Council AIDGAP series, this book contains keys to the 57 species of centipede found in Britain.  

This Week in Biodiversity News – 2nd September

Conservation 

Britain’s rarest plant has been rediscovered in Britain for the first time since 2009. Having been declared extinct after a 22 year absence, a single Ghost Orchid was recently discovered by Richard Bate who has spent the last 30 years searching for it, marking the end of the plant’s lengthy absence. The location of this rare specimen will remain concealed to protect the delicate flower from trampling and poaching, while scientists work to protect the orchid from natural predators and grazing animals. 

DNA analysis is helping to eradicate the American Mink from East Anglia. This invasive species has been decimating Britain’s Water Vole and seabird populations since the 1970s, and authorities are now utilising DNA technology to manage their population. Using this key technology, the Waterlife Recovery Trust can estimate relatedness between individuals, identify how far animals may have travelled and pinpoint access routes to remove re-entry points, thus eradicating populations within the project area. The trust has successfully cleared East Anglia of this invasive species, and have seen no signs of mink reproduction in the core project area, resulting in a distinct increase in Water Vole presence. 

A long, brown mammal is standing on a rock in the river. It has a long tail and its fur is wet
Image by tsaiproject via Flickr

The world’s fish stocks are in a worse state than previously thought. Research suggests that the scientific recommendations informing fisheries policy are too optimistic and that more global fish stocks have collapsed or are overfished than originally estimated. The study suggests that around a third of ‘maximally sustainably fished’ stocks are actually overfished, which can lead to phantom recoveries where declining stocks are thought to be recovering. The study calls for simpler, more conservative stock assessments and management that are quantified based on realistic models. 

 

Wildlife  

An RSPB survey has revealed a hotspot for a threatened species. Data collected from April to June across East Yorkshire and Lincolnshire has found 420 breeding pairs of Redshank on the Humber Estuary, a hotspot for these threatened birds. With a total population of 22,000, this environment holds around 2% of the entire population and is now considered a highly important area for this species of conservation concern.   

A brown-grey bird with a white belly and throat is standing in the water with one leg. It has a bright orange beak and bright orange legs and feet
Image via Flickr

A network of wildlife charities is calling for the release of beavers across the UK. Following a successful summer of breeding, the trusts have seen an upsurge in kit sightings throughout the UK, sparking a call for further management and strategy surrounding the species. These organisations are calling for the government to produce reintroduction strategies to facilitate their return across the UK and are urging authorities to allow illegally released beavers to remain in their release sites, of which there are over 1,000 in Scotland. 

 

Environment  

Countryside river testing reveals pharmaceutical pollution across the UK. Researchers from the University of York tested 54 locations and revealed contamination at 52 sites, with the most common pollutants including antidepressants, antibiotics, antihistamines and diabetes treatments, among others. The study found that rivers in the Peak District were more polluted than samples taken in London, with a total of 29 active pharmaceuticals detected in the region. This discovery marks concerns for antibiotic resistance, human health and concern for the health of freshwater organisms residing in the waterway. 

A rocky waterfall surrounded by forest
Image by Victor Tamarit via Flickr

The EU is being sued by the Climate Action Network Europe and the Global Legal Action Network for failing to set adequate climate targets. The lawsuit was formally filed by the NGOs earlier this year, who argue that climate targets for agriculture, waste, transport and small industries have not been substantiated by the best science and are inadequate in scope to allow the EU to meet the goals of the Paris agreement. The last comments have been filed by the NGOs, and an oral hearing is expected to take place in 2025. 

Author interview with Stuart Ball and Roger Morris: Hoverflies of Britain and Ireland

Britain's Hoverflies book cover showing a hoverfly from above perching on a daisy.Hoverflies of Britain and Ireland is a beautifully illustrated photographic field guide that details the hoverfly species readily available in Great Britain. This revised and updated third edition details 13 additional species and features more than 840 stunning photographs, alongside a host of other improvements to aid reliable identification. As such, this is the most accessible, authoritative and easy-to-use guide available, and a must-read for all entomologists and naturalists alike.

Stuart Ball and Roger Morris have been running the Hoverfly Recording Scheme since 1991 and published the Provisional Atlas of British Hoverflies in 2000. Stuart and Roger both worked as entomologists for the statutory nature conservation agencies, are both active members of the Dipterists Forum, a society that promotes the study of flies, and have subsequently run many hoverfly identification courses prior to their retirement.

We recently had the opportunity to talk to both Stuart and Roger about the book, including how they first became interested in working with hoverflies, where the ‘new species’ that are now detailed in the third edition have come from and more.


Firstly, can you tell us a little about yourselves and your history of working with hoverflies?

In the late 1980s and early 1990s, we worked for the Nature Conservancy Council’s ‘Invertebrate Site Register’ and were active entomologists with a broad interest in flies. Alan Stubbs, our boss at the time, was looking to re-vitalise the Hoverfly Recording Scheme following Philip Entwistle’s retirement and twisted our arms to take it on. The idea was to combine Stuart’s interest in computing and data interpretation, and Roger’s interest in hoverflies, to try to get the scheme back off the ground. At that time there were about two cubic metres of record cards and about 50,000 computerised records. We took the project on, knowing that we would have to computerise those cards, check the existing computerised data and draw in data from numerous other datasets. Little did we realise what it would entail and how it would change our lives! We produced a provisional Atlas in 2000, a second one in 2011 and now have maps available online. Although we are still running the scheme, we do want to see it safely transition to a new generation before we become too long in the tooth! 

Volucella zonaria, Britain's biggest hoverfly enjoying the buddleia om the summer sun.
Volucella zonaria by Martin Cooper. via flickr.

You are both involved in organising and managing the database of the Hoverfly Recording Scheme. Can you tell us a little bit about it and why the scheme is important?

We split responsibility – Stuart manages the database and deals with data import and final validation processes, whilst Roger deals with day-to-day contact with recorders, including verification of iRecord data and active engagement via the UK Hoverflies Facebook group. The dataset now comprises over 1.8 million records and is the largest dataset for an insect group, except for Lepidoptera and Odonata. The size of the dataset, combined with the unique ecological significance that arises from their various larval feeding strategies, makes hoverflies an excellent subject for many lines of research. The most obvious one has been interest in pollinators, but there are growing avenues of interest in hoverflies because they are sensitive to climate change and also because they are often highly habitat specific. Scheme data is also used in the triennial ‘State of Nature’ reporting. 

There are 13 additional species included in this updated edition. Where have these ‘new’ species come from?

When we started work on the new edition there was scope to expand the book, but obviously much less scope to completely re-organise its structure. The species chosen were mainly included because experience has shown them to feature among the species whose photos are posted online and, therefore, people want to know about them. One big change we have made has been to make sure that all Eristalis species are covered and that we have a key to assist in their identification. 

Hoverfly perched on a green plant with seeds.
Hoverfly by nmahieu, via flickr.

The third edition includes a new section on putting data to good use. Why was this important for you?

Our objective from the onset has been to produce a book that is somewhat different from a traditional identification guide. We wanted to make sure that readers thought about both the animal they saw and its larval biology. Moreover, we wanted to encourage high-quality recording. Our background in nature conservation has taught us that the biggest impediment to insect conservation is a lack of reliable data. So, we felt it was necessary to show readers how records might be used and what messages they can convey. The use of models to investigate aspects of wildlife biology and conservation is relatively new, so showing readers that data can be used for a lot more than just ‘dots on maps’ is essential if we are to foster an ongoing high-quality recording community. 

Traditionally, hoverfly guides use dichotomous keys as the primary aid for identification. What challenges did you face in producing an identification guide based on photographs and why did you feel that a photographic guide was the right choice for this book?

When we originally developed the book, it was not our intention to replace the existing monographs which include full keys, such as British Hoverflies (Stubbs & Falk 2002), Hoverflies of Northwest Europe (van Veen 2010) and the newer Hoverflies of Britain and North-West Europe (Bot & van de Meutter 2023). Our intention was to produce a companion to these books which illustrated the key features using field photos of live flies and close-up shots of specimens to make the identification process more accessible. The huge growth in records coming from photos posted online meant that we especially wanted to target photographers who wish to put a name to the animals in their pictures. Moreover, had we used traditional keys, the book would have been 400+ pages long and would have been considerably more expensive. Britain’s Hoverflies was quite a brave move for WILDGuides at the time because they had not tackled such a large insect family. The design and the contents had to be marketable, appealing and affordable to people who might not normally buy a book on flies. Coming up with guidance that does not involve keys has been a challenge and we must credit Rob Still for the design inspiration and turning our rough ideas into something workable. Since that first edition, the book has evolved and expanded. It is now a lot bigger, but we have held to our basic belief that it should be complimentary to these other works rather than a replacement. 

Syritta pipiens - Thick-legged Hoverfly taking nectar from a small, yellow flower.
Syritta pipiens – Thick-legged Hoverfly by Nikk, via flickr.

This updated edition includes revised maps, flight-period charts and population trends for hoverfly species across Britain. Have you observed any changes in behaviour or distribution in response to developing environmental challenges? And do we have a clear idea of how these insects are likely to be impacted in the future? 

All insects are responding to a plethora of environmental changes, but we are in a better position to investigate the challenges facing hoverflies because there is such a big dataset and new data arrives in volumes that we could only have dreamt of 30 years ago. Some species are expanding their range, while for others the frequency with which they are recorded is diminishing and/or their range is contracting. Species that were once at the edge of their European range have moved northwards, some quite dramatically. Several new species have arrived, apparently under their own steam, as their European ranges have expanded, but others have been assisted by lax biosecurity. A few species have disappeared from south-east England or are in the process of doing so. 

It might be assumed that the twin evils of habitat loss and agricultural intensification (including pesticides) are primarily responsible for these changes; however, we think that climate change is having a far more profound impact than is currently accepted. Flies have very thin-skinned larvae and are highly susceptible to changes in humidity, so increases in the frequency and intensity of heatwaves and droughts will have a big impact on them. This sensitivity makes them important indicators – they are arguably climate change canaries that help to explain why so much of Britain’s precious biodiversity is disappearing. Flies are at the bottom of the food chain, so if you lose flies there will be fewer insectivorous birds and mammals, let alone predacious invertebrates such as wasps and spiders.


Britain's Hoverflies book cover showing a hoverfly from above perching on a daisy.

Hoverflies of Britain and Ireland is published by WILDGuides and is available to pre-order from our online bookstore.