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Keywords from Image Description:
Chough range map. Redbilled Chough Pyrrhocorax pyrrhocorax distribution map References Balmer et al Bird Atlas BTO del Hoyo et al eds Handbook of the Birds of the World Lynx Edicions MacKinnon Phillipps Field Guide to the Birds of China Oxford Snow Perrins The Birds of the Western Palearctic concise ed Oxford Own Yomangani