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Keywords from Image Description:
Ornis Caucasica. Die Vogelwelt des Kaukasus Taf. IX . Tat IX ' ' ' ' inst Th Fischer Casstl Passer flomesticns typ et vart salicicolxrs Vieill MetoponiapusillaPall ad Taf IX Illustration biodiversitylibrary org title Radde Gustav Biodiversity Heritage Library Ornis Caucasica Die Vogelwelt des Kaukasus systematisch