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Auteur Klaus Malling Olsen |
Documents disponibles écrits par cet auteur (2)
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Article
Flavio Ferlini, Auteur ; Klaus Malling Olsen, AuteurFrom the second half of the 20th century, some Asian or Eastern European species expanded their breeding range westward. These include red-flanked bluetail Tarsiger cyanurus, black-headed bunting Emberiza melanocephala, common rosefinch Carpodac[...]![]()
Ouvrage
This guide covers all of the world's gull species, tackling some of the most notoriously difficult identification and taxonomic challenges in birding. Concise text – complemented by an accurate colour range map – places particular emphasis on fi[...]



