Image of a Nightjar on the ground, by Mike Toms/BTO, alongside white wording in a green box to the left that reads: Nightjar study. Environmental and Geographic Conditions on the Breeding Grounds drive Bergmannian Clines in Nightjars. www.bto.org

A study investigates how variation in body size and migration in Nightjars is influenced by environmental and geographic conditions on the breeding grounds. Take a look ➡️ bit.ly/BergmannianCl... #Ornithology

#Nightjars! Don't you just love 'em? An exceptional year in NE Scotland. Another pr pinned down last night w/ Paul Baxter & another bird at a new site

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@scottishbirding.bsky.social @btoscotland.bsky.social @btobirds.bsky.social #birdingscotland @greg-conway.bsky.social

Another good night for #Nightjar in Aberdeenshire. Singing males found at another two new sites.
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@scottishbirding.bsky.social @btoscotland.bsky.social @btobirds.bsky.social #scottishbirding @greg-conway.bsky.social

No, just at this site. Usually 5-7 regular territories, but still time for migrants to return. There are around 100 territories in Thetford Forest and lots more in the rest of Norfolk and Suffolk.

First #btobirds Breeding Bird Survey visit completed in Thetford Forest. Firecrest down 60% but more Siskin and Chaffinch compared to recent years.

First sunny morning and Song Thrush leading the dawn chorus, along with Crow and Coal Tit. #birds

Fantastic John. Still waiting for the right conditions 🤞

Fantastic sun halo over Thetford Forest this afternoon. #sunset

Part of the wintering Moorhen flock using riverside paddocks.

A new local record count of 58 #Moorhen spread across a few riverside paddocks. Some new arrivals swelling numbers in the current cold snap. Logged on BirdTrack. #ornithology @btobirds.bsky.social

Image of a Stonechat on a purple background alongside the wording: Work with us! Senior Programme Lead (Bird Atlas). www.bto.org/jobs BTO logo features top right of image.

Job Alert. 📢 Join BTO as Senior Programme Lead for Bird Atlas ➡️ www.bto.org/jobs

⏱️ Closing date: Sunday 19 January
📋 Post: Full time, fixed term (3 years)
📝 Salary: £45,435
🐦 Skills: Strong leadership, project management and experience managing volunteer-driven projects. #Ornithology #UKBirding

Chilly bright start to the morning.

Great sunset over #thetfordforest this evening.

There's still time to apply to be our new Farmland Research Manager➡️ bto.org.uk/jobs #Ornithology

Looks like good Woodcock roosting habitat!

Look at this map. Look at it! This is what Amur Falcons do! Their migration is jaw-dropping. You do not want to miss Suresh Kumar's @birdsoftheworld.bsky.social webinar next week! birdsoftheworld.org/bow/news/amu...

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And and Looe? For extra points🤔

Think #stormpetrels just wing it to find a meal? 🍽️ Think again! Finally, our study is out: these tiny #seabirds use ocean dynamics to find #foraging grounds in the #WestMed. And guess what? Well-placed #MPAs help keep their ‘favorite restaurants’ open.🧑‍🍳 www.sciencedirect.com/science/arti...

Birding friends-can you help?
#UKbirding #gulls

Sounds amazing Sam!! Did you catch any Euro Nightjar, or had they already moved through?