eider

Large marine duck of the genus Somateria, family Anatidae, order Anseriformes. They are found on the northern coasts of the Atlantic and Pacific oceans. The common eider S. molissima is highly valued for its soft down, which is used in quilts and cushions for warmth. The adult male has a black cap and belly and a green nape. The rest of the plumage is white with a pink breast and throat, while the female is a mottled brown. The bill is large and flattened and both bill and feet are olive green.

Other species are the king eider-duck S. spectablis, Steller's eider Polysticta stelleri, and the spectacled eider S. fischeri.