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Keywords from Image Description:
CerthideaFuscaPZSL. Certhidea fusca Certhidea fusca olivacea fusca Sclater Salvin Warbler Finch head from lateral bill from dorsal remiges tips from ventral Proceedings of the Zoological Society of London archive org vol archive org page page published author pdold PZSL Certhidea fusca Thraupidae heads Thraupidae wings