The redhead (Aythya americana) is a medium-sized diving duck, 37 cm (15 in) long with an 84 cm (33 in) wingspan.The adult drake has a blue bill, a red head and neck, a black breast, and yellow eyes. The adult hen has a brown head and body and a darker bluish bill with a black tip. The drake's distinctive call, a mewing weee-ooooo, is given during courtship.The breeding habitat is marshes and prairie potholes in western North America.
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