51 Years of Bullfinch Monitoring Revealed Decline, Male Bias and Age-Matched Pairs
A 51-year study in Treswell Wood, England, recorded a strong Eurasian Bullfinch decline. Among 2,065 ringed birds, males…
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News about Eurasian Bullfinch
Research, conservation and important developments connected to this species.
Eurasian Bullfinch ABCB1 Repeat Lowered Protein Levels but Did Not Explain Ivermectin Sensitivity
A 2026 molecular study found an unusual repeat in the Eurasian bullfinch ABCB1 drug transporter that reduced total…
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UK Breeding Bird Survey: Swift Index Fell 70% as Scotland’s Chiffchaff Index Rose 1,443%
The 2025 UK Breeding Bird Survey revealed steep long-term declines, major regional divergences and some striking increases, including…
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Waxwings, Bullfinches and Redpolls Arrived Earlier in Tatarstan Over 33 Years
Across 33 years around Kazan, first autumn records moved earlier for Bohemian waxwings, Eurasian bullfinches and redpolls. Rough-legged…
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