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Dr Callum Macgregor

@callumjmacgregor.bsky.social
626 followers 284 following 23 posts

Senior Research Ecologist, BTO Cymru | wildlife and pet photographer @pawsomepictures.co.uk | dw i’n dysgu Cymraeg | he/him | own views

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Dr Callum Macgregor @callumjmacgregor.bsky.social · 18/06/2025
Gobsmacked to learn that this male Pied Flycatcher, currently feeding chicks at my coastal nestbox site in Eryri NP (and caught under BTO licence), was originally ringed as a chick over 150km away in the Lake District!
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Pawsome Pictures Dog Photography @pawsomepictures.co.uk · 08/03/2025
Struggling to get that perfect shot of your pet? Why not ask for professional help. I recently worked with handsome collie Pip and his mum, who said he “always looks crazed” in photos. #dogphotography #dogphotographer #dogs #bordercollie #northwales
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Dr Callum Macgregor @callumjmacgregor.bsky.social · 25/01/2025
A beautiful day to be putting up nestboxes in the Carneddau ☀️ ⛰️ 🌳
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BTO | British Trust for Ornithology @btobirds.bsky.social · 10/01/2025
1/ New #BTOScience reveals that seabird population declines due to Highly Pathogenic Avian Influenza (HPAI), or bird flu, can be detected using data collected by volunteer seawatchers. Read more ⬇️or visit our website ➡️ www.bto.org/HPAI-seawatching #Ornithology #Seabirds #Birds #UKBirding
Image of a Sandwich Tern flying alongside the wording: New Study. Impacts of Highly Pathogenic Avian Influenza (HPAI) on seabird populations in the North Sea are detectable in sea-watchers’ migration counts. www.bto.org/HPAI-seawatching. BTO logo sits top right of image.
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Graham Sparshott @fifevismig.bsky.social · 31/12/2024
The ease of inputting data and interpreting it wouldn't possible without the brilliant Trektellen website bsky.app/profile/call...
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Mark Newsome @whitburnbirds.bsky.social · 27/12/2024
Great to see Whitburn #seawatching data used (through @trektellen.bsky.social) With just 78 Bonxies logged in over 1000 hours observation in 2024, it has been the worst ever year since regular documented seawatching started here. 😢 #NEbirding #seabirds
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Dr Callum Macgregor @callumjmacgregor.bsky.social · 27/12/2024
Like London buses, my second paper published in the space of a week! Working on the (substantial) impacts of HPAI on seabirds, it was fascinating to find that population changes in some of the hardest-hit species are reflected in @trektellen.bsky.social seawatch counts. dx.doi.org/10.1080/0006...
dx.doi.org
Impacts of highly pathogenic avian influenza on seabird populations in the North Sea are detectable in sea-watchers’ migration counts
Sea-watching counts provided evidence of declines in abundance of four seabird species during autumn migration, which were consistent with the timing of highly pathogenic avian influenza (HPAI) out...
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Dr Callum Macgregor @callumjmacgregor.bsky.social · 24/12/2024
Super happy to have got off to a flying start with a 5🌟 review from my first dog photography customer! Head over to my website www.pawsomepictures.co.uk to find out more about my new sideline
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Dr Callum Macgregor @callumjmacgregor.bsky.social · 20/12/2024
Out today: my final paper from my postdoc at the @universityofhull.bsky.social, in which we explored the UK public's views on brownfield sites and biodiversity! So very excited to finally be publishing this paper - a labour of love. *Please note: this is not BTO work.* doi.org/10.3351/ppp....
doi.org
Conservation priorities for development: survey of UK public’s views on brownfield sites and biodiversity - People, Place and Policy
People, Place and Policy is an online journal providing a forum for academic debate around issues of urban policy, social and economic regeneration, housing and the labour market. Articles deal with t...
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Will Rose @willrose.bsky.social · 27/11/2024
Episode 05 Birds of prey OUT NOW! In this episode we will be looking at how to spot the difference between a #Buzzard, #Red Kite, #Kestrel and #Sparrowhawk. Learn their distinctive flight style, shape, colour and behaviour. @btobirds.bsky.social youtu.be/gH6L14rE6Fk?...
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Dr Callum Macgregor @callumjmacgregor.bsky.social · 20/11/2024
I haven't been doing as much wildlife photography in the run-up to launching @pawsomepictures-uk.bsky.social, but it was great to get out yesterday and see the super Snow Bunting flock on the Great Orme (with a genuine snowy backdrop to boot!) #ukbirding
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Pawsome Pictures Dog Photography @pawsomepictures.co.uk · 16/11/2024
If only they could stay this cute forever! The first months of a puppy’s life are a great time for a photoshoot, so you have a memento of those magical times forming that special bond with each other 💕 #dogphotographer #dogphotography #puppy #puppies #puppylove #northwalesdogs #northwales
A puppy licking its nose, with its pawrent’s boots in the background. By Pawsome Pictures Dog Photography
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Pawsome Pictures Dog Photography @pawsomepictures.co.uk · 14/11/2024
The beach is probably my favourite place to shoot. Open vistas, golden light, and plenty of options for fun and games with the dog! Wherever you are in the UK, you’re never far from the coast, and we are blessed with some amazing beaches here in North Wales #dogphotography #dogsofbluesky #northwales
A Cairn Terrier running towards the camera on a beach, by Pawsome Pictures Dog Photography
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Pawsome Pictures Dog Photography @pawsomepictures.co.uk · 13/11/2024
I'm very excited to bring Pawsome Pictures to life! I'm offering outdoor doggy photoshoots across North Wales and further afield. I can't wait to work with you and your furry best friend. Head to my website pawsomepictures.co.uk to find out more and get in touch! #dogsofbluesky #northwales
A photo by Pawsome Pictures Dog Photography, of a Cairn Terrier running on the beach carrying a tennis ball.
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Dr Callum Macgregor @callumjmacgregor.bsky.social · 13/11/2024
Excited to be launching my new dog photography venture! Head over to @pawsomepictures-uk.bsky.social to find out more ❤️
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BTO | British Trust for Ornithology @btobirds.bsky.social · 14/10/2024
We need your help to monitor raptors in Wales! 📢 A brand-new BTO citizen science project launches today, which asks volunteers to choose a survey patch and one or more of the key target species to record. 🦅 Sign up to take part ➡️ bit.ly/CudyllCymru
Red Kite / Barcud Coch
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Dr Callum Macgregor @callumjmacgregor.bsky.social · 25/04/2024
A beautiful late-evening visit to my reservoir site yesterday. Herb-Robert proving it’s a rainforest by growing on a fallen tree, a metre above ground. Five eggs from the Nuthatches, and the Pied Flycatchers won’t be far behind…
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Dr Callum Macgregor @callumjmacgregor.bsky.social · 17/04/2024
Such a privilege to spend time in my two nestbox monitoring sites in the Carneddau - both around 250m elevation but with very different backdrops and characters. The season is now in full swing with the Pied Flycatchers back and nest building! Nests monitored under BTO licence
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Dr Callum Macgregor @callumjmacgregor.bsky.social · 29/11/2023
North Wales was at her stunning best this afternoon up at Cwm Idwal 🏔️ ❄️ ☀️
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Dr Callum Macgregor @callumjmacgregor.bsky.social · 20/11/2023
Lots of colour-rings to be found on Colonsay. Already this trip, we’ve resighted multiple Barnacle Geese, Hooded Crows and Choughs (plus our target Greenland White-fronts). Even saw - but frustratingly failed to read - a Twite from one of @jamiedunning.bsky.social‘s schemes! #ukbirding
A colour-ringed Barnacle Goose, yellow I/4Colour-ringed and GPS-tagged Greenland White-fronted Geese, including A5C (all ringed on Colonsay this January, and have since been to Greenland and back!)A Twite from the same flock as the colour-ringed bird whose ring we couldn’t read!
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Dr Callum Macgregor @callumjmacgregor.bsky.social · 17/11/2023
A brilliant day - smooth crossing to Colonsay (sightings of camera 📷 Tystie, 📷 Golden and White-tailed Eagles) before we caught up with some 9 of our 12 colour-marked 📷 Greenland White-fronted Geese in the last of the light!
Tystie (or Black Guillemot) from the Oban-Colonsay ferryGolden Eagle from the Oban-Colonsay ferryGreenland White-fronted Geese on Colonsay. The top-left bird carries a GPS tag!
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Dr Callum Macgregor @callumjmacgregor.bsky.social · 15/11/2023
Making my way slowly north this week, towards Colonsay. I’ll be spending a long weekend trying to catch up with A3A and his pals. With a little luck, I’ll come back home with a laptop full of amazing migration data, and leave a setup behind to gather another winters’ worth of habitat usage data!🤞
Rachel and I from BTO Cymru fitting a GPS tag (labelled ‘A3A’) to a Greenland White-fronted Goose on ColonsayKiloran Bay on Colonsay in the rain last January
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Dr Callum Macgregor @callumjmacgregor.bsky.social · 12/11/2023
A couple more favourites from this spring that never graced X, both taken in the wonderful ffridd that fringes the high Carneddau near home. Lesser Redpoll and Ring Ouzel - species I knew only as winter/passage migrants before moving to North Wales
A male Ring Ouzel on a branchA Lesser Redpoll watches from a branch as its mate flies in
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Dr Callum Macgregor @callumjmacgregor.bsky.social · 12/11/2023
I'd post a lot of my photos on the other place, but lost the will when it lost its way. Now I'm here thanks to the kindness of @botanybeck.bsky.social, it feels appropriate to start out with a @wildflowerhour.bsky.social photo! Green-winged Orchid and Spring Squill at Esgyryn, taken this spring
A purple Green-winged Orchid catches the sun amid a carpet of pale blue Spring Squill
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