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Abbildungen von VogelSkeletten Tafel XVI . Meyer Abb Vogelskeletten Tafel VI Tetrao tetrix Tafel XVI Illustration biodiversitylibrary org title Meyer Adolf Bernhard NameFound Tetrao tetrix NameConfirmed Tetrao tetrix EOLID NameBankID Biodiversity Heritage Library Abbildungen von VogelSkeletten Anatomy Birds Smithsonian