Hybrid mallard gadwall duck (Anas platyrhynchos x strepera). Illustration from John James Audubon's 'Birds of America', original double elephant folio

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Hybrid mallard gadwall duck (Anas platyrhynchos x strepera). Illustration from John James Audubon's 'Birds of America', original double elephant folio (1835-38), hand-coloured aquatint.

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Size: 4723px × 3700px
Photo credit: © NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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