Events – Hoopoe – A blog by nhbs

2025 Biological Recorders Conference for Cornwall and Isles of Scilly

I recently had the opportunity to run a group workshop at the 2025 Biological Recorders Conference for Cornwall and Isles of Scilly – a fantastic day dedicated to celebrating the vital wildlife recording efforts in Cornwall. Held at the University of Exeter’s Penryn Campus, the event brought together a diverse group – from those just starting their wildlife observation journey to seasoned experts, all sharing a genuine passion for the county’s natural wonders. It was inspiring to network with fellow enthusiasts, and the range of workshops and insights into the latest projects was truly exciting.

This year’s focus, ‘Data for the Future: Recording Nature in a Changing World’ was particularly thought-provoking. The conference explored the recent shifts in recording methods, including the increasing adoption of structured monitoring, the exciting technology used in recording and the value of traditional techniques. It was a valuable day, and I’m looking forward to sharing some of my key takeaways from the event.

Key highlights

It was great to connect with so many people with unique and varied interests. I spent most of my morning meeting lots of likeminded people who are interested in biological recording, chatting all things equipment and answering lots of questions about the kit. Throughout the day, I attended some interesting talks from a number of researchers and organisations. My highlights are as follows:

Pollinator Responses to Urban Green Environments – Oliver Poole, University of Exeter

Oliver’s research focussed on planting green spaces, and whether green spaces are working for both pollinators and people. His research wanted to find out what delivers the most benefits to these groups, and interestingly, his results showed that a mix of native and ornamental plants had the best scores for pollinators and people.

Honey bees in a flower — Image by PapaPiper via Flickr

Sea Bass Monitoring, Robin Bradley

This talk centred on the work of a volunteer group, who record data on juvenile bass in the Fal, Helford and Camel estuaries to analyse the strength of each successive year class. Their valuable data has now been validated and added to a larger dataset that will contribute to work across Europe. I particularly enjoyed the wider message of this talk, which emphasised the importance and value of community and citizen science in the wildlife space.

Camel Estuary — Camel estuary by Rob Hodgkins via Flickr

Tor to Shore – Recording Opportunities, Dr Gwen Maggs

Another interesting talk discussing the Tor to Shore project, an expansive undertaking from Cornwall Wildlife Trust to create a Local Nature Recovery Network spanning across land and sea. The talk discussed the project, and the work on the Trust’s farm, linking to lowlands, an expanding sand dune system, and into the sea with seagrass and maerl habitats.

Data for the Future: Hardware in the Field

I had the opportunity to speak in a group workshop, where I demonstrated some wildlife recording kit and discussed the different types of hardware that can be used for a range of monitoring. It was great to demonstrate the capabilities of wildlife equipment and their applications in the field, and I was able to cover a wide range of monitoring including traditional methods, acoustics, telemetry, video and thermal imaging.

I started with a focus on traditional monitoring, before moving on to advancements in the sector and its technology across a range of habitats and environments. I covered a range of equipment, from bat detectors and camera traps to thermal imaging and our upcoming NEWTCAM. It was great to receive such interest in the kit, and with wildlife technology becoming more and more accessible, it is a great opportunity to share the latest technology to wildlife recorders in the South-west.

It was great to meet so many likeminded individuals interested in biological recording and I particularly enjoyed the emphasis, and appreciation of, citizen science and the value that community can bring to conservation. Overall, it was an inspiring day, and I look forward to attending next year’s conference!

UK Moth Recorders’ Meeting 2025

Butterfly Conservation’s Moth Recorders Meeting provides an essential update for ecologists, wildlife watchers, and naturalists interested in the latest developments in moth recording, research, and conservation. Introduced by director of business and research, Russel Hobson, this year’s meeting was held online via Zoom on Saturday 25th January, and comprised of a variety of talks by keynote speakers including Dr Zoë Randle, David Hill and Dr Avalon Owens.

Dr Zoë Randle, Butterfly Conservation: National Moth Recording Scheme Update

The first speaker, Butterfly Conservation’s Dr Zoë Randle, shared an update on the National Moth Recording Scheme and key trends. Over 600,000 observations were submitted on iRecord throughout2024, bringing the total macro moth records to 36.2 million and micro moth records to 7.4 million in the National Moth Recording Scheme. Despite an increase in moth recording last year, Zoë emphasised the importance of both recorders and verifiers, while also stressing the need for more volunteers to streamline the verification process.

A map showing the density of records across the UK — Number of Records in the National Moth Recording Scheme per km square. Credit: Dr Zoë Randle

Dr Norman Lowe, County Moth Recorder, Breconshire: Charismatic Clearwings in mid-Wales.

Dr Norman Lowe, County Moth Recorder for Breconshire, discussed clearwings in mid-Wales, presenting the group as flagships for dayflying moths and provided an update on clearwing records during 2024. Last year, 31 more recorders and ten more pheromone traps/lures were supplied to aid in recording, resulting in a total of 80 clearwing observations for 2024. Data revealed some local and scarce species, including the Welsh Clearwing and Red-tipped Clearwings, and highlighted species which are common and widespread, like Lunar Hornet Moths.

David Hill, Conservation Manager (Scotland), Butterfly Conservation: Black, White, Red & Gold – surveying Argyll’s rare moths

Next to speak was David Hill, who reported on two key species that he has been working with in Scotland: White Spotted Sable Moths and Transparent Burnet. He discussed the background and biology of the species, as well as the efforts undertaken to better understand their pressures and distribution.

2024 larval surveys uncovered 30 White Spotted Sable caterpillars over three days and allowed surveyors to categorise habitat. This coming year, the team will look to rear caterpillars to confirm identification, start adult surveys and seek out sites where Anania terrealis, a commonly mistaken species, is present.
Transparent Burnets are a focus for Scottish conservation projects as part of the Species on the Edge programme. This rarely recorded species is one of concern due to loss of suitable habitat and work will continue throughout 2025 to establish the distribution and abundance of this moth across Argyll.

Transparent burnet moth — Transparent Burnet. Credit: David Hill

Dr Luke Evans, Butterfly Conservation: Can we measure the impact of insect change on bird and bat populations?

Dr Luke Evans discussed the DRUID project, which has operated since 2021 and aims to investigate the drivers and repercussions of UK insect decline. Evans discussed the impact of this catastrophic decline on species whose diets are adapted to insects, true correlation vs random correlation (the observation data conundrum) and the suggestive patterns of decline in birds as a result of this. The use of key data, including that in the National Moth Recording Scheme, demonstrates the importance of national monitoring data for evaluating insect abundance and the direct impacts of insect change.

Dr Sam Fabian, Imperial College London: Understanding why artificial lights trap flying insects using high-speed videography

The next presentation was delivered by Dr Sam Fabian, who explored the aggregation of insects around bright light sources, how artificial light can impact insect flight and the behavioural mechanisms behind it. Fabian suggests that circling behaviour around bright light sources is due to dorsal light response – a stabilising reflex where insects angle their body to orientate bright lights above them – which causes erratic flight paths around artificial light sources.

Circling behaviours around artificial light sources. Credit: Dr Sam Fabian

Dr Avalon Owens, Rowland Institute, Harvard University: Do sustainable lighting practices sustain moths?

Last to speak was Dr Avalon Owens, who concluded the session with an insightful discussion on the impacts of light pollution on moths. This growing threat is one of many that impacts global insect abundance and diversity, and can have a range of negative impacts on insect behaviour, including: fatal attraction, temporal and spatial disorientation and visual confusion. These can have catastrophic effects on insects internal body clock, navigation ability and recognition of resources. With light pollution levels growing and expanding exponentially, Dr Owens also outlined key routes to tackle the issue by creating sustainable lighting that is useful, targeted, controlled, low level and warm coloured.

Five lighting principles for responsible outdoor lighting and impacts of artificial light on insects. Credit: Dr Avalon Owens

This year’s Moth Recorders Meeting was a fascinating insight into the National Moth Recording Scheme, key trends and developments in moth ecology and conservation, and the threats to these undervalued insects. Find out more about Butterfly Conservation, their valuable work and ways to get involved on their website.

To hear more from this year’s speakers, a recording of 2025’s meeting can be found on the Butterfly Conservation YouTube channel.

National Nest Box Week 2025

Friday 14th February marks the start of National Nest Box Week. With widespread population declines due to habitat loss and urbanisation, National Nest Box Week presents us with the perfect opportunity to provide habitat for local birds, boosting breeding success and contributing to the enhancement of biodiversity in our green spaces.

Mid-February marks the start of the breeding season for many British bird species, with many beginning to actively seek new territory and suitable nesting sites. Nest Box Week is a great time to install a new nest box or do some maintenance on any existing boxes. By providing artificial nesting sites, we can assist species such as Robins, House Sparrows, and Swifts, while simultaneously raising public awareness about the diverse range of birds that benefit from these resources.

House Sparrow at the entrance of a nest box — Image by Vine House Farm via Flickr

Here are some ways to get involved in National Nest Box Week:

Install a nest box in an outside space, garden or balcony
Plant native flora and provide access to fresh, clean water to keep your garden bird-friendly
Support bird conservation organisations by donating, volunteering or sharing their work
Encourage friends and family to get involved in supporting their local wildlife

Garden Bird Species

Robins are a familiar sight in UK gardens and are easily recognised by their bright red breast and cheerful song. They prefer open-fronted nest boxes, often tucked away in hedges or shrubs, to mimic their natural nesting preferences in sheltered crevices and vegetation.

Blue tits are small, vibrant birds common across the UK that are often seen flitting through gardens and woodlands. They prefer small, enclosed nest boxes, hung high to mimic their natural nesting sites in tree cavities.

With their distinctive yellow beak and melodious song, Blackbirds are a common sight in various habitats across the UK. They prefer open-fronted nest boxes, at a slightly higher location, tucked away amongst dense vegetation or climbing plants for added security.

House Sparrow perched on balcony railing

Common in UK gardens and urban areas, Sparrows prefer nest boxes with a small entrance hole, placed high up on walls or under the eaves of houses, mimicking their natural nesting sites in crevices and holes in buildings.

Why is National Nest Box Week important?

Increasing urbanisation, human development and changing land-use have had devastating impacts on bird populations in the UK. A loss of natural nesting habitats has introduced extra challenges for rearing young, and nest boxes provide nesting birds with vital habitat to rear chicks – helping to mitigate the impacts of habitat loss which is essential for supporting local bird populations.

Find a selection of nest box blogs on the Conservation Hub, including:

NHBS Guide: Where to hang and how to maintain your nest box

Training Course: Bats for Building Professionals

The recent training course by the Bat Conservation Trust, Bats for Building Professionals, aimed to provide direction and understanding on the legal protections surrounding bats and their roosts in buildings. Suitable for contractors, pest controllers, surveyors, architects or those working within the construction industry, the session aided building professionals in developing their bat roost identification skills and taught them how to navigate situations where bats are present on site.

The seven-hour course, run over two interactive online sessions, explored bat ecology, biology, best practices, the latest guidance and legal information.

The course began with a comprehensive overview of Britain’s breeding bat species, covering their biology, ecology, adaptations, habitat preferences and roosting types. Speaker Katie Swift introduced the Bat Calendar – a particularly interesting aspect of the session which revealed how contractors and construction workers can plan work around bat activity to minimise disturbances (see below).

Bat calendar indicating best times for construction works — The bat calendar shows how contractors and construction workers can plan work around bat activity to minimise disturbances.

This led to a discussion of bat roosts in built structures, where Katie explained why bats favour these spaces and detailed attractive features for both cavity and crevice roosting species, such as soffits, eaves, and cladding. Exploring the different uses of these roosts throughout the year, Katie highlighted how occupied spaces change between summer and winter, and which bat species commonly utilise buildings for this purpose. Using examples like pipistrelles and horseshoe bats, she demonstrated how different species utilize roosting sites and how to recognize an active roost.

The second part of the discussion focused on legislation and bat protection, educating attendees on the laws that are in place to ensure bat protection, actions that are considered an offence, and highlighting advice services available. Katie then reviewed the European Protected Species License, explaining its role in safeguarding bats within the UK, outlining how construction activities can potentially harm bats in buildings, and when to seek advice as a building professional in keeping with best practice guidelines.

Common pipistrelle bat — Image by Bio Blitz via Flickr

The second session concluded with an interactive quiz of working examples for building professionals, covering a range of typical building works including barn conversions, door repairs and gutter replacements.

The ‘homework’ task between sessions was a particularly enjoyable aspect of the course – through independent field work, attendees had the opportunity to report on the potential bat features of their chosen building or structure and apply the knowledge learned throughout the session to understand which species may be present in the area, the areas bats may utilise on the structure and what works might impact a roost.

This insightful and informative training course provides a valuable resource for building professionals seeking to learn or refresh their knowledge about bats and building projects. The speaker’s expertise ensured a comprehensive and engaging learning experience, covering everything from bat ecology, to bats in buildings and licensing.

Find out more about upcoming events and the extensive range of training courses with the Bat Conservation Trust via their website.

Conference: Rewilding Futures Shaping Tomorrow’s Wild 2025

Although the term was initially coined in the 1990s, ‘rewilding’ has come to dominate conservation thinking in the last fifteen years. This seemingly paradigmatic shift was consequent of a growing perception that a vision of planetary future should not merely appease a bare minimum criterion for ecological longevity. Instead, conservationists should envision an ecologically prosperous future that supersedes the conditions of the present or the recent past. Many of the initiatives enacted under the banner of ‘rewilding’ may be seen as the attempted actualisation of this vision.

Six years have passed since Citizen Zoo’s original Rewilding Symposium in 2019. This period has seen a rapid acceleration in the global recognition of rewilding alongside the now widespread presence of rewilding initiatives. The growth and support of the rewilding movement has coincided, of course, with the continued acceleration of global biodiversity loss and the increasingly unignorable impacts of anthropogenic climate change. The common philosophy across the sometimes-disparate presentations of participants was that the process of actively reinstating biodiversity is inextricably tied to the viability of our planetary future.

Rewilding Futures played host to a globally diverse set of speakers from organisations including Rewilding Chile; Rewilding Europe; Rewilding Britain; Gorongosa National Park (Mozambique), Blue Marine Foundation; The Wildlife Trusts and Rewilding Argentina.

This year, the University of Cambridge played host to the conference, bringing together leading voices to tackle pivotal issues in the field and discuss the future of rewilding in the coming decades. Key highlights for me were as follows:

Carnivore Reintroductions

Luigi Boitani asked, ‘What role for wolves in Europe?’ – a fascinating presentation which argued for the conservation status and continued legal protection of wolves across the continent. The recovery of the species has been successful across swathes of Europe, and this has raised questions of the potential down listing of the species. Most interestingly, the presentation pulled into question the oft perceived justification for wolf reintroduction – their capacity to create a trophic cascade of top-down ecological restoration. The speaker argued that this justification has been historically overstated in the same way that their potential to prey on livestock has been underplayed. For Boitani, we must acknowledge that our desire for the presence of wolves is based on our perception of the species’ intrinsic value and simultaneously the real concerns about livestock predation must be mitigated.

Adult Lynx — Image by Tambako the Jaguar via Flickr

A presentation from Scotland: The Big Picture provided a summary of their efforts in working towards a reintroduction of Eurasian Lynx in Scotland. Similarly to Boitani’s consideration of wolves in Europe, they also acknowledged that the carnivore’s potential to prey on livestock has been understated by previous groups who have lobbied for lynx reintroduction. Most importantly, Scotland: The Big Picture acknowledged the necessity of garnering support from stakeholders who may be impacted by the presence of lynx. The organisation’s more clearheaded approach to the possibility of lynx reintroduction in Scotland marked a stark contrast to the mysterious and illegal releases in the Cairngorms which preceded the conference.

Perhaps the most contentious presentation of the event came from the Colossal Foundation – a Texan initiative that claims they are enacting a process of Thylacine ‘de-extinction’. A mandated project will see the Tasmanian Tiger, extinct since 1936, re-animated and playing a significant role in future Tasmanian ecology. This, alongside their programme of Woolly Mammoth ‘de-extinction’, could be perceived as representing the boldest outreaches of the rewilding movement. Pragmatists within the conference raised concerns about the detrimental implications that this unprecedented project, the mandate of which transcends ordinary legal barriers to reintroduction, could have on Tasmanian ecology.

Land for rewilding: Legal mechanisms and Ownership

The Lifescape Project offered an analysis of the legal mechanisms used to secure land for long-term rewilding, such as conservation covenants in England and conservation burdens in Scotland. Their talk Using Novel Legal Mechanisms to Secure Land for Rewilding: Lessons from across UK and Europe outlined the ways in which various mechanisms allow or impede the long-term dedication of land for rewilding. Utilising cross comparison case studies from across Europe, this talk encouraged innovative and collaborative approaches to improving land use legislation.

Similarly, Ted Theisinger’s workshop To Own and Control: The Future of Land Governance Structures in Scotland and Beyond presented an interesting consideration of the future of conservation in Scotland. Scotland is one of the most depleted terrestrial landscapes and simultaneously has one of the most concentrated structures of land ownership in the world. Throughout the workshop, participants considered the ways in which existing legislative instruments define the parameters of conservation within the context of Scottish land ownership. The workshop oriented toward imagining a future where non-human voices were interwoven into considerations of what to do with our lands and seas.

Scotland is one of the most depleted terrestrial landscapes and simultaneously has one of the most concentrated structures of land ownership in the world. — Image by Nick Bramhall via Flickr

Peatland Restoration

Among the many intriguing discussions of individual sites where rewilding is enacted was Andrew Osborne’s historical ecology of Chat Moss, a 36km square area of lowland raised bog in Salford. The presentation traced the history of Chat Moss over the last 200 years, including industrial habitat destruction which resulted in a significant loss of flora and fauna in the area. The talk highlighted the work of restoration projects dating back to the 1980s, driven by the imperative to preserve carbon stored in the peat and encourage carbon sequestration. Consequentially, the last forty years have seen the translocations of many species into the area, including the recent reintroduction of the Large Heath Butterfly (Coenonympha tullia).

Marine Rewilding

Another highlight was the Blue Marine Foundation’s presentation Rewilding the Seas: A modern odyssey of hope and challenge. Charles Clover outlined the work of the Blue Marine Foundation and looked to answer the question: why rewild the sea, which in comparison to land, is seemingly already wild? The presentation argued that the principles of sea rewilding are essentially the same as that of land, to bring back lost and depleted species to our oceans and restore ecosystems that have been harmed by human activities?– simply by stepping back and letting nature repair the damage, or by reintroducing species/ restoring habitats.

lesser spotted dogfish — Image by Mark Fox via Flickr

Final Thoughts

While aspects of rewilding remain deeply contentious and there continues to be a vast diversity in perspectives of what rewilding should and could be, the most substantial thematic takeaway is that rewilding has galvanised people in a way that traditional conservation approaches have not.

In 2025, the impacts of anthropogenic climate change and unprecedented biodiversity loss are met with deterministically inactive governing bodies across the globe. In many ways things seem more hopeless than ever before, yet actors within the conservation field understand that without hope there can be no inspiration for change.

The revolutionary potential of the rewilding movement has come to represent the last beacon of hope for a viable future for people and nature – a possible catalyst for change.

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

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.

How Can We Use Sound to Measure Biodiversity? – Webinar Round-up

In July, the Biological Recording Company held the first of three webinars on bioacoustics in conservation. These webinars, which are presented in partnership with Wilder Sensing, Wildlife Acoustics and NHBS, began with a general introduction to bioacoustics, and will be followed with two sessions later in the year discussing the technology in more detail.

In the first webinar, talks by Geoff Carss of Wilder Sensing and Joe Hampson from the Somerset Wildlife Trust provided listeners with an overview of bioacoustic technology, its applications in measuring diversity and a short story of Honeygar farm, the Trust’s first ‘wilded’ site. NHBS are pleased to have sponsored this webinar, and we would like to thank participants who took part in our prize draw to win a Song Meter Micro 2.

Wilder Sensing: An entry-level introduction to bioacoustics

Bioacoustics provides ecologists and conservationists with an auditable, low-cost technology to measure biodiversity. It involves the use of audio recorders to passively detect sound in an environment, which can then be analysed to provide insights into community assemblage.

This technology can be used to measure several environmental variables, including animal presence, soil health, weather and infrastructure. Long-term monitoring of an environment can provide us with new insights on the richness and species density of an area and can even be used to analyse migration of key groups. Analysis can also determine areas of interest and habitat preferences for certain species, which can be used to inform future land management.

This method removes bias from traditional surveying techniques, where the skill and age of the observer, or sometimes even the day itself, can impact the result of a traditional survey. However, there are some limitations associated with this technology. False positives (the technology can misidentify a species), false negatives (the technology might miss a call), poor sound quality and mimicry can impact the accuracy of recorded data. To capture an accurate picture of community assemblage, passive recording is best used in partnership with traditional site surveying. This way, disturbance and false negatives can be mitigated, and through bioacoustic surveys, we can revisit the recordings as technology develops.

An acoustic sensor deployed at Honeygar Farm. Image by Wilder Sensing.

Key points:

Bioacoustic technology provides additional insights into community assemblage through the use of sound

The technology is best used alongside traditional surveying for a more accurate overview

The technology is limited by sound quality, false positives and false negatives.

Somerset Wildlife Trust: Honeygar Farm Case study

Honeygar Farm is an 81-hectare site of former intensive farmland, now owned by the Somerset Wildlife Trust (SWT). Since acquiring Honeygar, SWT have employed a unique ‘wilded’ approach to restoring the site.

Changes in hydrology management were among the biggest alterations at Honeygar, as the site has been subject to intense peat drainage to make way for agriculture. Honeygar has over two metres depth of peat, equivalent to 100,000 tons of carbon dioxide, so restoring the natural peatland by blocking drainage ditches was key to improving the carbon storage on site. Cutting and grazing by cattle, historically a huge pressure, has also been reduced from a herd of around 140 animals to 40 individuals. This, partnered with limited silage cutting and resting fields from grazing, is encouraging recovery of the botanical communities on site. The Trust is also exploring the use of different ungulates, including goats, ponies and different cow breeds, to better support the wetland habitat.

Over 20 months, nearly 13 million records were gathered using four sensors on site. This monitoring was undertaken alongside breeding bird, wintering bird and breeding wader surveys to provide a more detailed picture of community assemblage, confirmed with manual validation and targeted surveys to assess rare bird presence. Honeygar will continue to be monitored for insects, birds, mammals, fungi and plants to inform future management practices.

Speaker Joe Hampson deploying acoustic recorders on site. Image by Wilder Sensing.

Key points:

Honeygar Farm is the Trust’s flagship site for the ‘wilding’ approach

Formerly an agricultural farm, Honeygar is being restored to its natural peatland habitat through alterations in landscape management

Bioacoustic technology has provided insight into the community assemblage at the farm, helping to inform landscape management.

This webinar was an enlightening insight into bioacoustics and highlighted some interesting points on its conservation applications. Read our Q&A with Geoff to hear more about Wilder Sensing and its technology, and find more details on Honeygar on the Somerset Wildlife Trust website.

Find tickets for the next webinar, ‘Can Passive Acoustic Monitoring of Birds Replace Site Surveys?’ here.

Going to Bat for Bioacoustics: How Acoustic Monitoring is Helping to Save Bats – Webinar Round-up

Recently, Wildlife Acoustics and Bat Conservation International partnered together to host a webinar highlighting the use of bioacoustics in bat conservation across the globe. The webinar featured three case studies tackling the impacts of white-nose syndrome, habitat loss and climate change with the help of bioacoustic technology. Here, we provide a summary of these case studies and the applications of acoustic monitoring in these investigations.

Florida USA, Dr. Melquisedec Gamba-Rios

Endemic to the region, the Florida Bonneted Bat (Eumops floridanus) is increasingly threatened by habitat loss from sea level rise and destructive development. This species has one of the smallest ranges in Southern Florida and utilises old tree cavities and large, open spaces for roosting and feeding. Dr. Gamba-Rios and his team sought to identify critical habitat for this endangered species using bioacoustics, hoping to support their fragile populations.

The team used acoustic recorders to identify key roosting and feeding areas for the species. Interestingly, they found that Miami’s zoo, golf courses and tropical parks had high numbers of Florida Bonneted Bat calls. The research showed that the large, open areas surrounded by forest and absence of artificial light of these locations provided an ideal foraging space for the species.

Since these bats require older, cavitied trees, the habitat of the group is at risk as development increases. Plans for water park construction were proposed on a key site for this species, however the evidence gathered here was used to challenge the proposal, resulting in its rejection to protect key bat habitat. In March 2024, over 1.1 million acres of critical habitat were designated for the species in Florida, including foraging areas in urban habitat and over 4,000 acres of Miami Pine Rocklands. Federally protected species are known to be twice as likely to move toward recovery than those without protection, so the designation of these spaces is incredibly important in securing the future of this species.

Shows a small brown bat with closed eyes, it is held in a blue blanket in daylight — Florida Bonneted Bat by Florida Fish and Wildlife via Flickr

Nyungwe National Park, Dr. Jon Flanders

Last seen in 1981, the Hill’s Horseshoe Bat (Rhinolophus hilli) was considered a ‘lost’ species in Rwanda. In January 2019, a group of scientists and researchers, including Dr. Jon Flanders, set out on a 10-day expedition in Nyungwe National Park, looking to rediscover this elusive animal.

Nyungwe National Park rangers played a key role in the early stages of this project, identifying caves and key habitat for bats in the area. The rangers conducted acoustic monitoring using SM4 Acoustics to identify foraging and roosting areas, collecting over 260,000 files of acoustic data. Eight of these recordings successfully detected the calls of the Hill’s Horseshoe Bat, found in small, defined ranges. During the 10-day trip, the team worked relentlessly to catch, measure and collect DNA samples from bats using mist nets and harp traps in these locations. The team successfully captured two Hill’s Horseshoe Bats and confirmed the capture of this critically endangered species with museum archive specimens. The expedition highlighted the spectacular diversity of Nyungwe National Park which features a large number of rare and endemic species, and these findings reinforce the parks importance as a biodiversity hotspot.

A brown bat is hanging upside down. it has white fluffy mould covering its wings and face — Little Brown Bat with white-nose syndrome by U.S. Fish and Wildlife Service via Flickr

White-nose Syndrome, Dr. Amanda Adams

White-nose syndrome is a cold-loving, infectious fungal disease found in bats. The fungus manifests in a total skin infection, most visible around the muzzle of the animal. This infection is responsible for significant mortality in several species, where the infection causes bats to wake often during hibernation – burning their fat stores, causing dehydration and starvation. Infected bats can expend up to twice the amount of energy as healthy individuals during hibernation, severely impacting their ability to survive the winter. Because of this, six million animals have succumbed to this infection so far, impacting 12 out of 44 species found in the USA.

Dr. Amanda Adams sought to use bioacoustics to enhance the management of foraging habitat to support these species through hibernation. The team used the Song meter mini to search for the presence of bats and observe their feeding behaviours. They found that feeding behaviours were observed up to three times more in prey patches, and this allowed researchers to designate feeding habitats for affected species. The survey will be used to inform vegetative management on passing corridors, aiming to increase the productivity of foraging areas to support the health of infected bats.

The ‘Going to Bat for Bioacoustics’ webinar provided an engaging insight into the applications of acoustic monitoring in bat research, showing how the technology can be used to support bat conservation. To learn more, the Wildlife Acoustics website has a range of training courses and webinars. Upcoming events can be found here.

Solitary Bee Week 2025

Solitary Bee Week was founded in 2018 to raise awareness of the importance of solitary bee populations across the globe. Now hosted by Buglife, this week-long event hopes to encourage the public to pledge their support for these unsung heroes. Solitary Bee Week 2025 (Tuesday 20th – Tuesday 27th May) gives us a chance to support these vital pollinators and #EarnYourStripes.

A hairy mining bee resting on a leaf. It has orange hair on its hind legs and long white hair on its thorax, legs and head — Andrena gravida by Frank Vassen via Flickr

What are solitary bees and why are they important?

It is estimated that there are between 20,000–30,000 solitary bee species across the world, and the UK is home to 240 of them. Solitary bees do not produce wax or honey, do not form hives, and do not exhibit swarming behaviours – a striking difference to the behaviours we usually associate with bees. They typically nest in underground burrows or in the hollows of plant stems and tunnels, so it is no surprise that we are seeing a downturn in the abundance of the group with increasing urban development and environmental decline.

As we urbanise, we remove the habitat of these extraordinary pollinators – we are seeing fewer hedgerows and wildflower meadows, which would otherwise provide vital food sources for these insects. Partnered with agricultural intensification, environmental changes are contributing to the significant declines we see in pollinators. Solitary bees are important for pollination, and their loss could be devastating not only to the environment, but for food security worldwide. Solitary Bee Week is helping raise awareness of these insects in the hopes of managing their threats and preventing further declines in the future.

How can I take part?

From pollinator identification workshops to solitary bee walks, Buglife is hosting a range of events in support of Solitary Bee Week. An interesting highlight of the week, Buglife have collaborated with Hayley Herridge the Pollinator Gardener to create the ‘B-Lines Garden’ to be featured in the Hampton Court Palace Garden Festival – highlighting the importance of insect pathways to provide corridors for pollinators. Find the full week’s itinerary here.

What can I do to support my local bees?

Solitary Bee Week is the perfect time to pledge your support for local solitary bees.

Leaving an area of exposed soil and providing bee hotels are great ways to provide nesting areas. Mining bees account for around 70% of solitary species – patches of exposed soil are an excellent way to provide space for this group, where they create underground nesting burrows. For cavity nesting bees, such as Red Mason Bees, hotels are a great way to provide nesting habitat where they will lay eggs in the dry, hollow tubes. Planting wildflowers and nectar-rich plant species is another way to support pollinators by providing an important food source.

Here we have chosen a selection of products in our range that can support solitary bees in your outdoor space:

#262715 Solitary Bee Bricks

#217363 Insect Tower

#257245 Solitary Bee Nesting Tin

#264931 Bee Barn Gift Box

#259552 Solitary Bees (Hardback)

#261456 Hairy-Foot, Long-Tongue (Paperback)

#244919 The Solitary Bees (Hardback)

Restore Nature Now 2024

The Restore Nature Now March took place in Central London on Saturday 22nd June. The march saw the coming together of over 350 charities, businesses and direct-action groups calling on the government to work harder to protect biodiversity in the UK and Restore Nature Now! Some of the NHBS team travelled up from Devon and joined the estimated 100,000 people that took part in the march.

‘The Restore Nature Now march felt really galvanizing. It was heartening to walk with so many ecologists, scientists and activists and to dip into conversations about the amazing work people are participating in around the country to lead and assist in nature recovery. I was really moved by the impassioned speeches in parliament square from a host of brilliant speakers, and the sight of three peregrine falcons over Westminster was a potent and magical moment too!’ – Oli

A large puppet bat held by a crowd. — A large bat puppet made by the Bat Conservation Trust.

A vibrant banner to stand up for nature.

‘It felt great to be a part of the march and join so many other people passionate about our nature and wildlife. The speakers at Parliament Square were inspirational, sadly I’m not sure if our politicians heard them, but we will be back and continue to be a voice for nature.’ – Adam

An estimated 100,000 took part in the march.

The march was supported by a range of nature-focused organisations including RSPB, Plantlife and WWF.

The family-friendly march had lots of entertainment and interactive activities.

WHY DID THE DEMONSTRATION TAKE PLACE?

Restore Nature Now took place to call on political parties to act on the climate crisis and use the upcoming general election as a turning point. Their demands are as follows:

A PAY RISE FOR NATURE: To facilitate nature recovery, agricultural landowners need more support to make climate-friendly choices, and to do this, Restore Nature Now urged the UK government to double the nature and climate-friendly farming budget.

MAKE POLLUTERS PAY: Big business significantly contributes to environmental decline and the climate crisis, and to tackle this, organisers asked for new rules and regulations to be introduced to enforce greater contributions.

MORE SPACE FOR NATURE: Restore Nature Now campaigned for the expansion and improvement of protected areas and called for an improvement of public land and national parks to make a greater contribution to nature recovery.

A RIGHT TO A HEALTHY ENVIRONMENT: Calling for the creation of an Environmental Rights Bill, organisers are looking for the UK Government to drive better nature decisions to improve public health.

FAIR AND EFFECTIVE CLIMATE ACTION: To solve the climate crisis, and in turn save nature, more investment is required into effective climate action.

Restore Nature Now was a fantastic demonstration of hope and a call to action for the UK government. Our staff had an enlightening experience and thoroughly enjoyed the entertainment and talks throughout the day.