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Reposted by Agustin I. Casale

British Ornithologists’ Union (BOU) @bou.org.uk · 15/06/2026

NEW on #theBOUblog from Agustin Casale Do finches trade colour for song? bou.org.uk/blog-casa... Based on this IBIS paper doi.org/10.1111/ibi.... #ornithology 🪶

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Reposted by Agustin I. Casale

British Ornithologists’ Union (BOU) @bou.org.uk · 27/04/2026

EARLY VIEW in IBIS Evaluating the association between vocalizations and coloration in finches (Fringillidae), a passerine group with elaborate signals | onlinelibrary.wiley.... A. I. Casale, P. L. Tubaro, D. A. Lijtmaer | #ornithology 🪶

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Reposted by Agustin I. Casale

Birds of the World | The Cornell Lab @birdsoftheworld.bsky.social · 03/04/2026

Many thanks to author Agustin Casale, a doctoral fellow at the Museo Argentino de Ciencias Naturales in Argentina, for his recent account revision for Hooded Siskin, a widespread and conspicuous finch of South America. @agustincasale19.bsky.social birdsoftheworld.org/bow/species/...

birdsoftheworld.org

Hooded Siskin - Spinus magellanicus - Birds of the World

Species accounts for all the birds of the world.

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