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Stu Butchart

@stubutchart.bsky.social
3K followers 286 following 1.8K posts

Chief Scientist at BirdLife International, the world’s largest partnership of nature conservation organisations. Views are my own.

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Stu Butchart @stubutchart.bsky.social · 11/09/2026
Migratory birds know no borders. They provide a warning but also a source of hope. Find out more in the latest State of the World’s Birds, which @birdlifeglobal.bsky.social launched today sowb.birdlife.org
sowb.birdlife.org
State of the World’s Birds | BirdLife
BirdLife International’s report on the state of the world's birds — trends, pressures, and conservation responses.
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Stu Butchart @stubutchart.bsky.social · 11/09/2026
Kicking off @birdlifeglobal.bsky.social #GlobalFlywaysSummit with the launch of our latest State of the World’s Birds in Nairobi, Kenya sowb.birdlife.org
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Stu Butchart @stubutchart.bsky.social · 11/09/2026
BirdLife is partnering with multilateral development banks like ADB, CAF and World Bank to mobilise billions of $$ for nature conservation along the world’s flyways. Panel discussion at our #GlobalFlywaysSummit in Nairobi.
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Stu Butchart @stubutchart.bsky.social · 09/09/2026
Exciting to hear Paul Matiku kick off BirdLufe’s 4-yearly Global Partnership Meeting in Nairobi. It is brilliant to see colleagues and old friends from 120 countries around the world. Busy days ahead as we plan our work for the rest of the decade. @birdlifeglobal.bsky.social
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Stu Butchart @stubutchart.bsky.social · 05/07/2026
Colourful songbirds are more likely to be threatened, even those not known from the pet trade: conbio.onlinelibrary.wiley.com/doi/full/10....
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Stu Butchart @stubutchart.bsky.social · 05/07/2026
This morning I recorded the 500th species of moth in my garden: Hummingbird Hawk-moth (a surprising omission till now). They look a lot cooler when they're hovering and sipping nectar like a hummingbird....
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Stu Butchart @stubutchart.bsky.social · 18/06/2026
What an amazing afternoon celebrating 10 years of the Cambridge Conservation Initiative and David Attenborough Building, which began with me accidentally ending up in a small lift with the extraordinary centenarian as he arrived...
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Caroline Lucas @carolinelucas.bsky.social · 12/06/2026
Good news! Ministers have finally given green light to new #NaturalHistory GCSE. We’ve campaigned so long for this! Big hats off to tireless advocate Mary Colwell 🙌 Now our young people will have a chance to get to know & love the natural world, to feel awe & wonder, & gain skills to protect it 🌷🌳🦡
theguardian.com
Natural history GCSE to teach teenagers to plant wildflower-friendly gardens
Long-awaited course to examine human effects on natural world and explore everyday ways to aid biodiversity
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Stu Butchart @stubutchart.bsky.social · 29/05/2026
It’s been far too long since I’ve been birding in woods in the west at this time of year. Lovely views of wood warbler, redstart, pied and spotted flycatcher and goshawk in Forest of Dean and nearby Wales over the last couple of days.
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Stu Butchart @stubutchart.bsky.social · 27/05/2026
Prof Bill Sutherland has a great series of YouTube videos covering various 'Conservation Concepts'. For his latest one he interviewed me about mapping important areas for global biodiversity and the role of Key Biodiversity Areas www.youtube.com/watch?v=XN9N... @billsutherland.bsky.social
youtube.com
Mapping important areas for global biodiversity
YouTube video by Bill Sutherland's Conservation Concepts
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Stu Butchart @stubutchart.bsky.social · 27/05/2026
I feel incredibly honoured (but a bit of an imposter) to have been elected today as a Fellow of the Royal Society today. Fantastic recognition for the conservation science that we do at BirdLife & testament to all my brilliant colleagues in BirdLife’s Science Division. @birdlifeglobal.bsky.social
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Stu Butchart @stubutchart.bsky.social · 26/05/2026
New paper from @rspbscience.bsky.social shows that 8% of Key Biodiversity Areas in regions suitable for growing oil palm have some cultivation within them, but proportional extent of oil palm is 5X greater outside KBAs. url.uk.m.mimecastprotect.com/s/httpCX2Gh4... @keybiodiversity.bsky.social
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Stu Butchart @stubutchart.bsky.social · 22/05/2026
Interesting new paper exploring the utility of different metrics for identifying Key Biodiversity Areas. Suggests modifying how we treat 'distinct genetic diversity' in the criteria for identifying KBAs www.sciencedirect.com/science/arti... @keybiodiversity.bsky.social
sciencedirect.com
Comparison of metrics for identifying Key Biodiversity Areas
Achieving global biodiversity targets requires reliable identification of Key Biodiversity Areas (KBAs). The KBA Standard defines six metrics to ident…
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Stu Butchart @stubutchart.bsky.social · 20/05/2026
Out today: my interview for the Finding Wildlife podcast by Akash Mehta: founder of the Fable Fund. He asked about my life story, experiences working around the world, my brilliant colleagues and the amazing BirdLife Partnership @birdlifeglobal.bsky.social. open.spotify.com/episode/2hyM...
open.spotify.com
Dr Stuart Butchart - Saving the World's Birds
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Stu Butchart @stubutchart.bsky.social · 18/05/2026
Emperor Penguin has been uplisted by BirdLife to Endangered on the IUCN Red List. What does mean & what can we do about it? Join me online tomorrow at 5pm BST/12pm EDT to join a live Q&A. Register here: events.teams.microsoft.com/event/cc2f60...
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BirdLife International @birdlifeglobal.bsky.social · 09/04/2026
Emperor Penguin now Endangered!🐧 Our new IUCN Red List assessment reveals the shocking impact of climate change.🌍 Drastic declines and erratic changes in sea ice in Antarctica are projected to cause the Emperor Penguin population to halve by the 2080s.📉 Read more👉 www.birdlife.org/emperorpenguin
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RSPB @rspb.bsky.social · 23/03/2026
Over a quarter of a million seabirds on Rathlin Island are now safer! 💙 Rathlin Island has been declared ferret-free: a world-first conservation success helping Puffins, Guillemots and more raise their young safely again. Read the full story: www.rspb.org.uk/media-centre...
A chocolate brown-and-white Guillemot stands upright on a grassy cliff edge, its dark head and slender bill silhouetted against a soft, hazy sky. Just behind it, a Puffin with a bright, colourful bill sits among the grass.
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BirdLife International @birdlifeglobal.bsky.social · 23/03/2026
#CMSCOP15 is happening now in Campo Grande, Brazil! 🦅 We’re calling on governments to turn global commitments into real action for migratory species.📢 Learn more here.👉 www.birdlife.org/news/2026/03...
birdlife.org
Migratory species connect our world, now we must act to protect them
In March 2026, governments from around the world will gather in Campo Grande, Brazil, for the 15th Conference of the Parties (COP15) to the Convention on Migratory Species (CMS). Taking place from 23…
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Stu Butchart @stubutchart.bsky.social · 19/02/2026
Key Biodiversity Areas are among the most important sites for nature globally. Our new paper reviews their history, describes the current network of >16500 sites and summarises their growing use by policymakers, governments and businesses onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Extent, characteristics and policy applications of Key Biodiversity Areas
A global standard for the identification of Key Biodiversity Areas (KBAs) was published 10 years ago to provide a unified set of criteria for identifying ‘sites of significance for the global persist...
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Stu Butchart @stubutchart.bsky.social · 31/01/2026
I did an interview for BBC Wildlife’s Wild Lives podcast on some of my experiences, including challenges accessing the countryside as a wheelchair user. Big shout out to all the friends, family and passers by who’ve helped me over the years podcasts.apple.com/gb/podcast/w...
podcasts.apple.com
Nature by wheelchair, with Stuart Butchart
Podcast Episode · Wild Lives · 30/01/2026 · 34m
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Stu Butchart @stubutchart.bsky.social · 12/01/2026
Translocation of Raso Larks to the island of Santa Luzia in 2018 after eradication of invasive cats has been spectacularly successful, with nearly 1000 individuals now. Great work by @birdlifeglobal.bsky.social partner Biosfera, and long-championed by Mike Brooke www.birdguides.com/news/raso-la...
birdguides.com
Raso Lark reintroduction proves a triumph
After a small number of Raso Larks were translocated to Santa Luzia in 2018, the population has grown to as many as 1,000 individuals.
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Stu Butchart @stubutchart.bsky.social · 05/12/2025
Climate change and overfishing threaten African Penguins. BirdLife South Africa are fighting for this species’ future www.theguardian.com/environment/...
theguardian.com
60,000 African penguins starve to death after sardine numbers collapse – study
Climate crisis and overfishing contributed to loss of 95% of penguins in two breeding colonies in South Africa, research finds
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Alexander Lees @alexanderlees.bsky.social · 02/12/2025
Huge News from the Western Amazon: it's the year 2025 and we are still describing entirely new, strikingly-distinctive large-bodied bird species! Behold Tinamus resonans sp. nov. the Slaty-masked Tinamou mapress.com/zt/article/v... #Ornithology @tetzoo.bsky.social 🪶
Photo montage of Tinamus resonans sp. nov., a new species of tinamou from the montane forests of the Serra do Divisor, western Amazonia, Brazil. The species is distinguished by a unique combination of plumage pattern, vocal repertoire, and ecological characteristics, including a conspicuous dark slate facial mask, vivid rufous-cinnamon underparts, and a uniform brownish-gray back. Its vocalizations are remarkable, consisting of long and powerful songs that echo strikingly across the steep montane slopes, producing a characteristic resonant effect. The species was documented exclusively at higher elevations within a transitional zone between submontane and stunted forests, where the understory is densely structured by root mats. A preliminary population estimate, based on field detections and spatial extrapolation, suggests approximately 2,106 individuals restricted to the Serra do Divisor massif. Although no immediate anthropogenic pressures were observed within its range, the species may be highly vulnerable to climate change and to proposed infrastructure projects that threaten the integrity of this federally protected region. The discovery of T. resonans highlights the biological uniqueness of the Serra do Divisor, reinforces its status as a center of montane endemism, and underscores the critical importance of maintaining its long-term conservation.
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Stu Butchart @stubutchart.bsky.social · 27/11/2025
Tentative signs of recovery in insectivorous birds in France following ban of neonicotinoid pesticides in 2018 - but further actions needed to recover populations www.sciencedirect.com/science/arti...
sciencedirect.com
Weak recovery of insectivorous bird populations after ban of neonicotinoids in France, hinting at lasting impacts
Neonicotinoids are expected to play a significant role in the decline of bird populations through their adverse effects on food resources (primarily i…
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Stu Butchart @stubutchart.bsky.social · 07/11/2025
New paper shows mortality of migratory shorebirds along China’s coast from hunting, fishery bycatch and, at aquaculture sites, bird deterrence measures accounts for 1-10% of total flyway populations for 11 species & is unsustainable for several of these. www.nature.com/articles/s41...
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Stu Butchart @stubutchart.bsky.social · 17/10/2025
Gripping video of the last 2 Slender-billed Curlews at www.rarebirdalert.co.uk/v2/Content/S.... I couldn't afford to join some mates who did a trip to Morocco to see them in 1992, 2 years before they disappeared. And last week, we declared the species extinct in our update to the IUCN Red List 😢
rarebirdalert.co.uk
Slender-billed Curlew Declared Extinct
IUCN confirms the loss of a once-widespread Western Palearctic wader after three decades without a verified record
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Stu Butchart @stubutchart.bsky.social · 17/10/2025
I was struck by this graph showing the spectacular growth in the UK population of Goshawks over my lifetime, which are still recovering from the impacts of persecution and pesticides that almost wiped them out. Conor James discusses this phenomenon at www.birdguides.com/articles/it-...
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FitzPatrick Institute of African Ornithology @africanornithology.bsky.social · 15/10/2025
🦅 Nearly 50% of Bearded Vulture territories in southern Africa have been abandoned. Human impacts, power lines & settlements, are key drivers, with food shortages adding pressure. Protecting them means tackling these threats head-on. doi.org/10.1650/COND... #VultureConservation #AfricanOrnithology
doi.org
Anthropogenic activities influence the abandonment of Bearded Vulture (Gypaetus barbatus) territories in southern Africa
Abstract. Developing an effective conservation strategy for a critically endangered species relies on identifying the most pressing threats to the species.
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Stu Butchart @stubutchart.bsky.social · 12/10/2025
Today a publication celebrating the legacy of Gustavo Fonseca is launched at the GEF pavilion at IUCN World Conservation Congress
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Dr Alex Bond @thelabandfield.bsky.social · 10/10/2025
Well, it's official. After our paper last year (onlinelibrary.wiley.com/doi/full/10....), the Slender-billed Curlew is officially declared Extinct today. Scientists dream of describing new species, not writing their obituary and epitaph, knowing that they are gone forever #ornithology
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Stu Butchart @stubutchart.bsky.social · 11/10/2025
Check out the new Key Biodiversity Areas website at www.keybiodiversityareas.org. Helpful guidance on what KBAs are, how they are being used by governments & other end-users, how to get involved, unprecedented access to the full dataset etc. @keybiodiversity.bsky.social @birdlifeglobal.bsky.social
keybiodiversityareas.org
Key Biodiversity Areas
Homepage description
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Stu Butchart @stubutchart.bsky.social · 02/10/2025
Fascinating article making a reasonable case that this neolithic rock engraving from 2000-5000 years ago in Alta, northern Norway, shows a Great Auk (now extinct) being captured. onlinelibrary.wiley.com/doi/full/10....
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Stu Butchart @stubutchart.bsky.social · 26/09/2025
Three decades of fantastic conservation efforts even in the most challenging of circumstances. We're always humbled by the commitment of those on the ground saving the world's birds and nature more broadly...
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BirdLife Europe & Central Asia @birdlifeeurope.bsky.social · 26/09/2025
From saving iconic species to publishing the Ukraine Breeding Bird Atlas during wartime, USPB has spent 30 years protecting Ukraine’s nature. We’re proud to have them in the @birdlifeglobal.bsky.social Partnership and support their work for people & the planet 💛💙 www.birdlife.org/news/2025/09...
birdlife.org
30 years of conservation: Celebrating our Ukrainian Partner’s legacy
In 2025, our Ukrainian Partner, the Ukrainian Society for the Protection of Birds (USPB), marks its 30th anniversary.
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Stu Butchart @stubutchart.bsky.social · 20/09/2025
Great talk by @rspb.bsky.social CEO Becky Speight to kick off the Avian Odyssey symposium at @nhm.org on the theme of how birds provide a reason for hope. I’ll pick up on this in the global context this afternoon. @birdlifeglobal.bsky.social
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Stu Butchart @stubutchart.bsky.social · 20/09/2025
This is a game changer for marine conservation. Now we need to build on the momentum and designate high seas marine protected areas to conserve Key Biodiversity Areas @keybiodiversity.bsky.social
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Stu Butchart @stubutchart.bsky.social · 12/09/2025
More evidence of the scale of human impacts: new study documents 220 extinctions (incl. 27 birds) on Macaronesia (Azores, Madeira, Canaries, Cape Verde etc). Post-human colonisation extinction rate >12 times higher. Paper doi.org/10.1093/pnasnexus/pgaf215. Story: www.birdguides.com/articles/ext...
doi.org
A synthesis of terrestrial species extinctions in the Macaronesian Islands and their correspondence with human occupancy
Abstract. We present the first synthesis of all known terrestrial endemic species extinctions in the biogeographical region of Macaronesia, covering all ar
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Stu Butchart @stubutchart.bsky.social · 12/09/2025
Fascinating anecdote about General Motors and sperm whale oil in this article in @theguardian.com www.theguardian.com/news/2025/se...
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Stu Butchart @stubutchart.bsky.social · 27/08/2025
Next month (Sat 20 Sept) I'll be talking about the State of the World's Birds at 'Avian Odyssey 2025'. Come along to the Natural History Museum, London, for a day of fascinating talks www.nhm.ac.uk/our-science/... @bou.org.uk @nhm.org @birdlifeglobal.bsky.social
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RareBirdAlert @rarebirder.bsky.social · 08/08/2025
Millions of 'Ghost' Pheasants Go Unregistered as Shooting Estates Flout Rules www.rarebirdalert.co.uk/v2/Content/M...
rarebirdalert.co.uk
Millions of 'Ghost' Pheasants Go Unregistered as Shooting Estates Flout Rules
New data exposes widespread non-compliance with Pheasant release registration laws - raising concerns over bird flu, biodiversity, and biosecurity
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Wilson Ornithological Society @wilsonornithsoc.bsky.social · 19/08/2025
Amazing: Birds may have a previously unrecognized ability to switch sexes. #ornithology
science.org
‘Sex reversal’ is surprisingly common in birds, new study suggests
Survey of five Australian avians finds numerous discordant individuals, including a genetically male bird that had laid an egg
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Stu Butchart @stubutchart.bsky.social · 08/07/2025
A paper describing the history of AviList and how the new unified global bird checklist was created has now been published - free to download until 1 September: rdcu.be/euZjH
rdcu.be
AviList: a unified global bird checklist
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Stu Butchart @stubutchart.bsky.social · 06/07/2025
Very cool to see Beaver in Canterbury city centre before breakfast this morning…
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Stu Butchart @stubutchart.bsky.social · 26/06/2025
New paper showing Key Biodiversity Areas are valuable in marine environments even for broadly distributed species. KBAs could be recognized for 3/4 threatened & 2/3 non-threatened restricted-range sharks using range maps conbio.onlinelibrary.wiley.com/doi/full/10.... @keybiodiversity.bsky.social
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Stu Butchart @stubutchart.bsky.social · 25/06/2025
New paper reviewing the world's 10,443 Critically Endangered species: their status, distribution threats and the actions needed for their recovery www.nature.com/articles/s44...
nature.com
The status, threats and conservation of Critically Endangered species - Nature Reviews Biodiversity
Species classified as Critically Endangered are at greatest risk of extinction, and their preservation and recovery are crucial to meeting global biodiversity aims. This Review assesses the geographic...
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Stu Butchart @stubutchart.bsky.social · 11/06/2025
Are there new threats, novel solutions, policy developments, or worrying/encouraging trends etc which may have significant implications for nature conservation and that are not widely known? Please share suggestions for horizon scan of emerging conservation issues. Thanks! #biodiversityfutures
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Stu Butchart @stubutchart.bsky.social · 11/06/2025
Fascinating new paper shows link between penguin poo & weather: ammonia released from guano forms airborne particles that seed clouds, influencing climate processes across Antarctica. Scientific paper: www.nature.com/articles/s43... News article: www.rarebirdalert.co.uk/RealData/Art...
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Stu Butchart @stubutchart.bsky.social · 11/06/2025
Find out more about the background behind AviList www.avilist.org - the new unified global bird taxonomic checklist, and why it is significant at www.linkedin.com/posts/stuart...
avilist.org
Home
AviList is a collaborative global effort to produce a single current consensus taxonomy for the birds of the world, along with key information on taxonomy and nomenclature. The checklist is free for d...
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Stu Butchart @stubutchart.bsky.social · 11/06/2025
We've just launched AviList! - the new unified global taxonomic checklist for the world's birds, developed through the Working Group on Avian Classification, including BirdLife, Cornell Lab of Ornithology, IOC and others @birdlifeglobal.bsky.social @birdsoftheworld.bsky.social www.avilist.org
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Stu Butchart @stubutchart.bsky.social · 10/06/2025
Our new paper assesses adequacy of the indicators adopted for the Global Biodiversity Framework. Only 19% of elements in the Goals/Targets are fully covered by the required headline & binary indicators - 40% are fully or partially covered @birdlifeglobal.bsky.social www.nature.com/articles/s41...
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