adult male; long neck, knobby bill (California, USA; 2004-01-05)
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Swan Goose
Anser cygnoides
Native Range:
Eurasia
Notes: this species has been domesticated, artificially selected, and introduced into parks and urban areas in many places around the world; it also hybridizes with various other waterfowl species, producing a diversity of plumages and body shapes.
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