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Movement Ecology PhD candidate | Radar Aeroecology | Monitoring & Comms. @batumiraptorcount.bsky.social | Remote Sensing | Open Science | He/Him | @barthoekstra on Twitter | barthoekstra.com
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https://bsky.app/profile/barthoekstra.bsky.social/post/3mbe2mhvtpk2x
Published: January 1, 2026 09:23
Happy New Year! 🎆
As expected, sadly, the radars once again lit up with MILLIONS of birds fleeing from #fireworks.
GIF of the @knmi.nl Herwijnen radar
See other years: horizon.science.uva.nl/fireworks/
Thread and more science below 🧪🪶
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https://bsky.app/profile/barthoekstra.bsky.social/post/3mauvi6srmk2r
Published: December 26, 2025 08:41
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https://bsky.app/profile/barthoekstra.bsky.social/post/3m52dkkzqa22i
Published: November 7, 2025 14:55
I legit choked on my coffee fr 💀
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https://bsky.app/profile/barthoekstra.bsky.social/post/3m4fzalv44s22
Published: October 30, 2025 12:58
To reduce negative impacts of #renewables (eg #windenergy) on migrating birds, we need to know *where* and how *high* they fly. Using weather radar, we mapped 6yrs of nocturnal migration over the Netherlands, revealing patterns we can use to avoid and…
https://bsky.app/profile/barthoekstra.bsky.social/post/3m26ttrmfa22c
Published: October 2, 2025 05:42
170K raptors! 🤯
8 yrs in the making, but I’ve finally witnessed a 100k+ raptors day while on the station actually counting the bulk of it. Incredible experience. Still feeling cross-eyed from staring through the scope non-stop for almost 10hrs.
📸: the…
https://bsky.app/profile/barthoekstra.bsky.social/post/3lydiefr2sk2r
Published: September 8, 2025 15:09
Tomorrow at #CWW2025 I’ll present new work on using weather radars (the ones you check for 🌧️) to map nocturnal bird migration to support wind energy planning.
Join my talk at 11:30 (Auditorium Pasteur) to see how this can improve impact assessments and…
https://bsky.app/profile/barthoekstra.bsky.social/post/3lydgnjw2gk2r
Published: September 8, 2025 14:39
Some asked if we had a ‘beef’ with Efrat et al. — quite the contrary! Their elegant work merited a proper response, so we wrote a letter to share our view on their work and long-standing Qs about migration counts.
If the khachapuri doesn't get to us…
https://bsky.app/profile/barthoekstra.bsky.social/post/3lxwvn7ybvk2a
Published: September 3, 2025 15:02
Things are really kicking off now at #BRC17. Although by no means the most diverse period for raptor migration in Batumi, there is little as humbling as standing below a sky filled with thousands, tens of thousands, or even over a hundred thousand Honey…
https://bsky.app/profile/barthoekstra.bsky.social/post/3lxiomofg422o
Published: August 28, 2025 23:20
I already regret removing a suggestive ‘weaponisation of birds for anti-wind litigation’ from a paper I submitted, which has since been desk-rejected 4 times. Journal editors, are you paying attention?
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https://bsky.app/profile/barthoekstra.bsky.social/post/3lxfsg2ruhk25
Published: August 27, 2025 19:49
A return of sea ice to the North Sea, 80-100 nights with sub-zero temperatures a year, an accelerated sea-level rise and less precipitation. Dramatic changes for just about any aspect of life in Western Europe.
Paper: https://doi.org/10.1029/2025GL114611…