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Somateria mollissima
The Common Eider is both the largest of the 4 eider species and the largest duck found in Europe and in North America (except for the Muscovy Duck which only reaches North America in a wild state in southernmost Texas). It measures 50 to 71 cm (20 to 28 in) in length, weighs 0.81 to 3.04 kg (1.8 to 6.7 lb) and spans 80–110 cm (31–43 in) across the wings. It is characterized by its bulky shape and large, wedge-shaped bill. The male is unmistakable, with its black and white plumage and green nape. The female is a brown bird, but can still be readily distinguished from all ducks, except other eider species, on the basis of size and head shape. This duck's call is a pleasant "ah-ooo." The species is often readily approachable.
It breeds in Arctic and some northern temperate regions, but winters somewhat farther south in temperate zones, when it can form large flocks on coastal waters.
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