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|Scientific Name: Aythya valisineria||Family: Anatidae||Order: Anseriformes|
|Size: 20-24 inches.||Range: Winters Canada and N. U.S. Summers in S. U.S. and Western Pacific coast.||Habitat: "Marshes, lakes."|
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Photo 1 of 4. Location: Coyote Hills. Date: 2004-12-26
Photo 2 of 4. Location: Coyote Hills. Date: 2004-12-26
Photo 3 of 4. Location: Hayward Shoreline. Date: 2012-02-21
Photo 4 of 4. Location: Don Edwards. Date: 2008-01-27