Locally Hatched Young Willow Warblers Declined 74% in Gotland Ringing Data
Standardised ringing at Sundre Bird Observatory found 74% fewer locally hatched first-year willow warblers in 2016–2024 than in…
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News about Willow Warbler
Research, conservation and important developments connected to this species.
Chiffchaff Subspecies Followed Different Migration Routes and Diverged Most Strongly at MARB
Tracking and genomic data from Baltic-region common chiffchaffs showed contrasting southwest and southeast migration routes, while the strongest…
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Northern Willow Warbler Moult Lasted About 15 Days
A 2026 study in Russia’s far north found a highly synchronous willow warbler moult lasting about 15 days,…
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28 Acoustic Stations Tracked Spring Arrival of Three Migratory Songbirds Across Norway
A nationwide passive acoustic network collected 37,429 hours of audio and mapped the spring arrival of common chiffchaffs,…
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Ten Migrants Followed Early-slow and Late-fast Passage Strategies Through Nigeria
Twenty-four years of ringing data from Jos showed striking species differences in migration timing: Icterine Warblers were among…
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