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Keywords from Image Description:
Ornis Caucasica. Die Vogelwelt des Kaukasus Taf. XX . Tat XX Piadde ad nalpinx Mist Jlnst Th Fiscfur Cassel Picus Poelzami Bogd Taf XX Illustration biodiversitylibrary org title Radde Gustav NameFound Picus NameConfirmed Picus EOLID NameBankID Biodiversity Heritage Library Ornis Caucasica Die Vogelwelt des Kaukasus