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BTO | British Trust for Ornithology

@btobirds.bsky.social

BTO is the UK's leading Registered Charity working with volunteers to improve our knowledge of birds through monitoring and research. www.bto.org

10,534 Followers  |  393 Following  |  897 Posts  |  Joined: 09.11.2023  |  2.397

Latest posts by btobirds.bsky.social on Bluesky

Ashok spent some time on the border of Chad and the Central African Republic, before moving nearly 310 miles south close to the northern border of Republic of the Congo.

Frederic recently achieved crossing the Sahara, the last of our Cuckoos to do so, and is now in Mali. ๐Ÿ˜€

06.10.2025 18:00 โ€” ๐Ÿ‘ 8    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

After a lengthy stay in southern Sudan, Sayaan flew some 1,056 miles! He passed through the Central African Republic and continued down into the dense tropical rainforests of the Democratic Republic of the Congo, where he will likely remain for the winter.

06.10.2025 18:00 โ€” ๐Ÿ‘ 8    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Image of a map of Africa with pins showing the locations of BTO satellite-tagged Cuckoos. Three Cuckoo headshots feature of Sayaan, Frederic and Ashok. The wording BTO cuckoo tracking, latest update and BTO logo feature top of image.

Image of a map of Africa with pins showing the locations of BTO satellite-tagged Cuckoos. Three Cuckoo headshots feature of Sayaan, Frederic and Ashok. The wording BTO cuckoo tracking, latest update and BTO logo feature top of image.

Our satellite-tagged Cuckoos are moving across Africa! ๐ŸŒ Follow the tagged Cuckoos and sponsor a bird at www.bto.org/cuckoos #Ornithology #Birds

06.10.2025 18:00 โ€” ๐Ÿ‘ 80    ๐Ÿ” 17    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 2

Beautiful song! Thank you for taking part in the survey.

06.10.2025 16:00 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Video thumbnail

Our first @btobirds.bsky.social Winter Bird Survey at Ludshott Common, Hampshire, today. Don't know if you can hear but there's a Woodlark singing his head off like it's the first day of Spring. Also Siskin, Redpoll, Crossbill, Dartford, Linnet and Stonechat in this one spot.

06.10.2025 14:41 โ€” ๐Ÿ‘ 18    ๐Ÿ” 5    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Graphic displays a Cormorant photographed by John Harding/BTO (left) and a Shag photographed by Liz Cutting/BTO (right). The species are labelled with their English and Latin names, Phalacrocorax carbo and Phalacrocorax aristotelis, respectively. Each image is labelled with key identifying features. For the Cormorant, these are: 'Heavy bill and a gradually sloped forehead', 'White chin', 'Blue sheen', 'White patch on thigh', and 'Variable amounts of white in the neck'. For the Shag, these are: 'Breeding crest', 'Green sheen', 'Lacks white in chin and neck', and 'Light bill and a steeply sloped forehead'. The Seabird Monitoring Programme logo is found in the bottom right hand corner. 
The caption reads: '1/ 1/ Despite a reasonable difference in size, Cormorants and Shags can be quite difficult to differentiate unless side by side!

In this thread โฌ‡๏ธ, we take a look at some of the key differences between adults and juveniles... #seabirds #birds @btobirds.bsky.social @jncc.bsky.social @rspb.bsky.social'

Graphic displays a Cormorant photographed by John Harding/BTO (left) and a Shag photographed by Liz Cutting/BTO (right). The species are labelled with their English and Latin names, Phalacrocorax carbo and Phalacrocorax aristotelis, respectively. Each image is labelled with key identifying features. For the Cormorant, these are: 'Heavy bill and a gradually sloped forehead', 'White chin', 'Blue sheen', 'White patch on thigh', and 'Variable amounts of white in the neck'. For the Shag, these are: 'Breeding crest', 'Green sheen', 'Lacks white in chin and neck', and 'Light bill and a steeply sloped forehead'. The Seabird Monitoring Programme logo is found in the bottom right hand corner. The caption reads: '1/ 1/ Despite a reasonable difference in size, Cormorants and Shags can be quite difficult to differentiate unless side by side! In this thread โฌ‡๏ธ, we take a look at some of the key differences between adults and juveniles... #seabirds #birds @btobirds.bsky.social @jncc.bsky.social @rspb.bsky.social'

1/ Despite a reasonable difference in size, Cormorants and Shags can be quite difficult to differentiate unless side by side!

In this thread โฌ‡๏ธ, we take a look at some of the key differences between adults and juveniles... #seabirds #birds @btobirds.bsky.social @jncc.bsky.social @rspb.bsky.social

06.10.2025 13:57 โ€” ๐Ÿ‘ 38    ๐Ÿ” 12    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 1

Were looking forward to working closely with the BTO and other partners on Bird Atlas 2027-31, and to supporting the vital role that Scotlandโ€™s birdwatching community will play in its success.

06.10.2025 12:15 โ€” ๐Ÿ‘ 14    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
BirdTrack | BTO About BirdTrackBirdTrack allows volunteers to store and manage their own personal bird records, and uses these to support species conservation at local, regional, national and international scales.

Also report them to @birdtrack.bsky.social through www.birdtrack.net for monitoring purposes, and please share this message with friends and birding communities. Thank you.

04.10.2025 18:00 โ€” ๐Ÿ‘ 8    ๐Ÿ” 5    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Image of a deceased Puffin lying on the ground. White wording on an orange background reads: Please report sightings of dead birds.

Image of a deceased Puffin lying on the ground. White wording on an orange background reads: Please report sightings of dead birds.

โš ๏ธ Please report sightings of dead birds for possible testing for Avian Influenza. โฌ‡๏ธ

๐Ÿ“Œ In England, Wales & Scotland: www.gov.uk/guidance/...
๐Ÿ“Œ In Northern Ireland: www.daera-ni.gov.uk/...
๐Ÿ“Œ In Republic of Ireland: aviancheck.apps.serv...

#UKBirding #BirdingWales #BirdingScotland

04.10.2025 18:00 โ€” ๐Ÿ‘ 39    ๐Ÿ” 49    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
A Goldcrest perches on the stem of a plant. Image by Graham Catley/BTO.

A Goldcrest perches on the stem of a plant. Image by Graham Catley/BTO.

Read this weekโ€™s @birdtrack.bsky.social migration blog โžก๏ธ www.bto.org/our-work/new...

Highlights include 260 Goldcrests at Spurn, Yorkshire on 26/09, three Red-breasted Flycatchers on Holy Island, Northumberland on 28/09 & 31,300 House Martins flying over Dorking, Surrey on 26/09.๐Ÿ˜ฎ #UKBirding

03.10.2025 15:01 โ€” ๐Ÿ‘ 39    ๐Ÿ” 5    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

It will be a landmark project for bird conservation, and weโ€™re grateful to know we have the support of these organisations and their volunteers, along with our brilliant BTO supporters. More updates are coming soon!

02.10.2025 18:00 โ€” ๐Ÿ‘ 7    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

So what is the Bird Atlas? Every 20 years or so, volunteer birdwatchers carry out a complete stocktake of the birds of Britain and Ireland for the Bird Atlas.

02.10.2025 18:00 โ€” ๐Ÿ‘ 7    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
A group photo of the BTO and BirdWatch Ireland team together on the top of a cliff with green vegetation in the foreground and blue sea in the background.

A group photo of the BTO and BirdWatch Ireland team together on the top of a cliff with green vegetation in the foreground and blue sea in the background.

A group photo of the BTO and SOC team together sitting on a bench and standing in front of a wood timber building.

A group photo of the BTO and SOC team together sitting on a bench and standing in front of a wood timber building.

A group photo of the BTO and WOS team together standing in front of a building with a small tree behind them.

A group photo of the BTO and WOS team together standing in front of a building with a small tree behind them.

Exciting news! Weโ€™re planning the upcoming Bird Atlas 2027-31, and have met with @birdwatchireland.bsky.social @scottishbirding.bsky.social and @birdsinwales.bsky.social to discuss how we can work together on what we hope will be the most productive Atlas yet. #Ornithology #UKBirding

02.10.2025 18:00 โ€” ๐Ÿ‘ 67    ๐Ÿ” 21    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 2
Images of Stock Dove and Turtle Dove.

Images of Stock Dove and Turtle Dove.

(1/) The Wild Bird Indicators were recently updated. Whilst Stock Dove increased by 165% between 1970 and 2023 across the UK, Turtle Dove declined by 99% during the same time period. @btobirds.bsky.social @jncc.bsky.social @rspbscience.bsky.social #Ornithology #CitizenScience

02.10.2025 07:10 โ€” ๐Ÿ‘ 27    ๐Ÿ” 10    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Image of a Wood Warbler held in the hand alongside the wording Young Bird Observatory Visitors Programme www.bto.org/ybov

Image of a Wood Warbler held in the hand alongside the wording Young Bird Observatory Visitors Programme www.bto.org/ybov

Our Young Bird Observatory Visitors Programme applications close soon on Sunday 5th October! If you're aged 24 & under, apply now for financial support for your visit to a bird observatory โžก๏ธ www.bto.org/ybov

Those interested must have a confirmed spot at an observatory before applying.

01.10.2025 18:00 โ€” ๐Ÿ‘ 15    ๐Ÿ” 5    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

More spaces added for this FREE walk this weekend for young bird and nature enthusiasts with BTO Youth and @essexbirdnews.bsky.social! Sign up โžก๏ธ www.bto.org/our-work/eve... #EssexBirding @webs-gsmp.bsky.social

01.10.2025 08:46 โ€” ๐Ÿ‘ 13    ๐Ÿ” 8    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Graphic displays a Black Guillemot photographed by Edmund Fellowes/BTO with a thought bubble extending from its head and the internal text 'Just one month to submit your breeding seabird data to the SMP!'. The SMP logo is positioned in the top left hand corner. The caption reads: 'Yes, that's right! 
You have until October 31st to submit your breeding seabird data to the SMP so that it can be utilised in understanding how species have faired this year! #seabirds'

Graphic displays a Black Guillemot photographed by Edmund Fellowes/BTO with a thought bubble extending from its head and the internal text 'Just one month to submit your breeding seabird data to the SMP!'. The SMP logo is positioned in the top left hand corner. The caption reads: 'Yes, that's right! You have until October 31st to submit your breeding seabird data to the SMP so that it can be utilised in understanding how species have faired this year! #seabirds'

Yes, that's right!
You have until October 31st to submit your breeding seabird data to the SMP so that it can be utilised in understanding how species have faired this year! #seabirds @btobirds.bsky.social @jncc.bsky.social @rspb.bsky.social

01.10.2025 07:11 โ€” ๐Ÿ‘ 20    ๐Ÿ” 15    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Artwork Wrens in Briar Rose by Laura Andrew, featuring an oil on panel artwork of two Wrens and pale pink flowers.

Artwork Wrens in Briar Rose by Laura Andrew, featuring an oil on panel artwork of two Wrens and pale pink flowers.

Artwork in oil Lapwings at the creek by Richard Allen, showing four Lapwings gathering at the edge of a creek.

Artwork in oil Lapwings at the creek by Richard Allen, showing four Lapwings gathering at the edge of a creek.

The artworks in the Society of Wildlife Artists Natural Eye 2025 exhibition are out now! โžก๏ธ buyart.mallgalleries...

We look forward to hosting the BTO Awards & @marshawards.bsky.social at this event in October.๐Ÿ†

๐ŸŽจWrens in Briar Rose by Laura Andrew & Lapwings at the creek by Richard Allen

30.09.2025 18:00 โ€” ๐Ÿ‘ 16    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Sheep Island. Photo by Sorrel Lyall / BTO

Sheep Island. Photo by Sorrel Lyall / BTO

Camera trap set up on Sheep Island. Photo by Sorrel Lyall / BTO

Camera trap set up on Sheep Island. Photo by Sorrel Lyall / BTO

Members of the BTO Northern Ireland team retrieving camera traps from Sheep Island. Photo by Nia Potapova / BTO

Members of the BTO Northern Ireland team retrieving camera traps from Sheep Island. Photo by Nia Potapova / BTO

Cormorants by Edmund Fellowes / BTO

Cormorants by Edmund Fellowes / BTO

๐Ÿ Last week the BTO NI team and staff from the National Trust retrieved cameras monitoring a Cormorant colony on Sheep Island

๐Ÿ“ธ This footage will be vital for understanding coastal-breeding Cormorants, which lack consistent productivity data in Northern Ireland

#seabirds #ConservationScience๐ŸŒ

30.09.2025 13:33 โ€” ๐Ÿ‘ 39    ๐Ÿ” 8    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Post image

NEW on #theBOUblog from Sue Lewis

After the outbreak: how gannets bounce back from bird flu

bou.org.uk/blog-lewi...

Based on this IBIS paper doi.org/10.1111/ibi....

#ornithology ๐Ÿชถ

29.09.2025 09:00 โ€” ๐Ÿ‘ 10    ๐Ÿ” 6    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

4/ It found emerging technology could greatly increase our knowledge of seabird ecology, but its introduction should be carefully planned and budgeted. Volunteer/professional fieldworkers should also be involved in decisions on its use where possible.

29.09.2025 11:10 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

3/ This study reviewed the use of new technology in enhancing seabird monitoring, including via automated time-lapse photography, uncrewed aerial vehicles (drones), passive acoustic monitoring and bird-borne telemetry (tracking).

29.09.2025 11:10 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

2/ This collaborative work in @icesmarine.bsky.social #IJMS was named as the Editor's Choice for the latest issue. Led by @seabirdmortenf.bsky.social the paper has four BTO authors @bennett-sophie.bsky.social, Hannah, Daniel and Liz @kittiwakegirl.bsky.social โžก๏ธ bit.ly/_EditorsChoice

29.09.2025 11:10 โ€” ๐Ÿ‘ 4    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Guillemots together on the top of a rock face. Wording above reads: New Study. Opportunities and challenges for new technologies in seabird population monitoring. www.bto.org/new-tech-seabird-monitoring

Guillemots together on the top of a rock face. Wording above reads: New Study. Opportunities and challenges for new technologies in seabird population monitoring. www.bto.org/new-tech-seabird-monitoring

1/ New study! #Seabirds are among the most threatened groups of birds globally, and a new study looked at how emerging technologies can be optimally harnessed in seabird monitoring. โžก๏ธ www.bto.org/new-tech-seabird-monitoring #Ornithology

29.09.2025 11:10 โ€” ๐Ÿ‘ 43    ๐Ÿ” 17    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Hello, that's brilliant to hear your son is interested in bird ringing. Please email our team at ringing.licensing@bto.org and they'll be able to help. You can also find out more about training to ring on our website here: www.bto.org/get-involved...

29.09.2025 08:36 โ€” ๐Ÿ‘ 1    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

The Winter Bird Survey has started! Huge thanks to all volunteer surveyors. You can find out more about the survey here: www.bto.org/get-involved...

29.09.2025 08:33 โ€” ๐Ÿ‘ 22    ๐Ÿ” 5    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
A Little Owl looks in the direction of the camera. Wording alongside reads: Be curious, join today.

A Little Owl looks in the direction of the camera. Wording alongside reads: Be curious, join today.

Feed your curiosity with a BTO membership! For just ยฃ3 a month, you'll have access to the latest news, research and resources, including exclusive content just for members, so you can learn more about #birds, their lives and their world. ๐Ÿฆ

Start your membership today โžก๏ธ www.bto.org/support-...

27.09.2025 18:00 โ€” ๐Ÿ‘ 18    ๐Ÿ” 8    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 2
A Brent Goose flies through a bright blue sky.

A Brent Goose flies through a bright blue sky.

New @birdtrack.bsky.social migration blog โžก๏ธ www.bto.org/our-work/new...

This week we look at reporting rate for Dark-bellied Brent Goose and Wigeon, and sightings of several eastern vagrants including a Pechora Pipit in County Durham!

#Ornithology #UKBirding

๐Ÿ“ท Brent Goose by Liz Cutting/BTO

26.09.2025 14:28 โ€” ๐Ÿ‘ 30    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1

Don't forget we've got a FREE joint BTO Youth & @essexbirdnews.bsky.social bird walk coming up for young people aged 12-25 on 4 October. Book a place โžก๏ธ www.bto.org/our-work/eve... #EssexBirding

26.09.2025 13:07 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Graphic displays a photo by Sam Langlois/BTO of a Herring gull chick. In the top right hand corner is the Seabird Monitoring Programme logo. The caption reads: 'Herring Gull plumage varies vastly between hatching and becoming adults! Initially, they are leggy balls of black-speckled down, soon to embark on a shifting plumage journey!
Discover their plumage changes in this threadโฌ‡๏ธ #seabirds #birds @btobirds.bsky.social @jncc.bsky.social @rspb.bsky.social'

Graphic displays a photo by Sam Langlois/BTO of a Herring gull chick. In the top right hand corner is the Seabird Monitoring Programme logo. The caption reads: 'Herring Gull plumage varies vastly between hatching and becoming adults! Initially, they are leggy balls of black-speckled down, soon to embark on a shifting plumage journey! Discover their plumage changes in this threadโฌ‡๏ธ #seabirds #birds @btobirds.bsky.social @jncc.bsky.social @rspb.bsky.social'

Herring Gull plumage varies vastly between hatching and becoming adults! Initially, they are leggy balls of black-speckled down, soon to embark on a shifting plumage journey!

Discover their plumage changes in this thread โฌ‡๏ธ #seabirds #birds @btobirds.bsky.social @jncc.bsky.social @rspb.bsky.social

26.09.2025 09:08 โ€” ๐Ÿ‘ 31    ๐Ÿ” 11    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

@btobirds is following 20 prominent accounts