Paul Dufour

@pauldufour80.bsky.social

Birder | Research Associate at Swiss Ornithological Institute @vogelwarte.bsky.social

Interested in animal movements and how they can influence evolutionary processes
https://pauldufour80.notion.site/pdu

@pauldufour80.bsky.social

Another visit to Flores Island and its airport, which may be the only airport in the world featuring a Blackcap! 😎 With easterly winds blowing for the past two weeks, we have only found a Greater Short-toed Lark so far, but a nice and unexpected surprise nonetheless (3rd for the Azores)

Greater Short-toed Lark in Flores Island (Azores) Eurasian blackcap sticker at the airport
@lazaroillustration.bsky.socialReposted by @pauldufour80.bsky.social

Unfinished piece for a current commission. The client has requested a modification that will take this illustration to a different direction, but I wanted to shred this one before moving to the new version.
#birds

Illustration of blackbirds catching berries in a snowy landscape
@joewynnbirds.bsky.socialReposted by @pauldufour80.bsky.social

The autumn arrival of yellow-browed warblers is pure magic every year. This season we’ve been on Shetland taking genomic samples from these enigmatic birds, in the hope we can link ’reverse’ migration to underlying genomic factors 🧬🗺️ excited to see what we find!

Yellow-browed warbler in the hand at dusk.Yellow-browed warbler in the hand in front of a van.Yellow-browed warbler in the hand in dull light. Yellow-browed warbler in the hand in front of a grassy verge.
@pauldufour80.bsky.social

The second target species for these Bluetooth tags was the Blue Tit, to test their potential for studying irruptive migratory movements. The first results, after a few days, are just so cool. Still pretty crazy to think that we can follow the migration of such a small bird in (almost) real time! 😎

the migration route and detection points of a blue tit that was tagged in Pape, Latvia. Tagged Eurasian Blue Tit
@chorlnev.bsky.socialReposted by @pauldufour80.bsky.social

‼️Now published @evolletters.bsky.social Developmental differences between males and females alter the sex ratio. 🐥🧵 about this study 1/9

@pseudacris.bsky.socialReposted by @pauldufour80.bsky.social

New preprint led by grad student Caleb Charpentier that I'm very excited about! This is a hefty review & perspective on how we can close the gap in trust between new "Deep comparative methods", and the biological meaning & inferences that systematists want.
ecoevorxiv.org/repository/v...

@pauldufour80.bsky.social

After two calm days of westerlies, migration really kicked off as the wind turned SE in Pape, Latvia. 10,000 Chaffinches passing every half hour and also 100s of Great & Blue Tits and Great Spotted Woodpeckers… quite surreal from a W European perspective. And some nice surprises in the nets!

Northern Nutcracker of the eastern macrorhynchos ssp Eurasian Pygmy-Owl
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