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Whooper Swan

cygnus_cygnus.pdf Dabbling duckThumbnailsDomestic gooseDabbling duckThumbnailsDomestic gooseDabbling duckThumbnailsDomestic gooseDabbling duckThumbnailsDomestic gooseDabbling duckThumbnailsDomestic goose

Eyton (Thomas Campbell) ― Osteologia avium. A sketch of osteology of birds. Wellington, Salop : R. Hobson, 1867.

http://www.biodiversitylibrary.org/item/129310#page/83/mode/1up