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Keywords from Image Description:
Argentine ornithology Pl. XVI . ARG ORN PL XVI BUTEO SWAINSONI Pl XVI Illustration biodiversitylibrary org title Hudson Sclater Philip Lutley NameFound Buteo swainsoni NameConfirmed Buteo swainsoni EOLID NameBankID Biodiversity Heritage Library Argentine ornithology Argentina Birds University of California Libraries