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Common Eider

Somateria mollissima ORDER: ANSERIFORMES FAMILY: ANATIDAE

IUCN Conservation Status: Least Concern

A colorful duck of the northern seacoasts, the Common Eider is the largest duck in the Northern Hemisphere. The male's bright white, black, and green plumage contrasts markedly with the female's camouflaging dull striped brown.

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Appearance

Ducks
Ducks
Typical Voice

Adult Description

  • Large, stocky duck.
  • Distinctive wedge-shaped head with long bill.
  • Male bold black-and-white, with black cap, white back, and black undersides.
  • Female brown with black barring.

Male Description

Breeding (Alternate) Plumage: Back, face, and chest white. Sides, belly, and tail black. Black cap. Nape greenish, sometimes with greenish line below eye. White patches on flanks. Extensive white in wings. Bill gray-green, yellow, or orange.
Nonbreeding (Basic) Plumage: Overall dark brown to blackish. Pale brown stripe through eye. Breast brown with white flecking. Back feathers white with black edges.

Female Description

Brownish all over with black barring, especially on sides and flanks. Dark speculum in wing outlined in white. Bill pale greenish gray to olive green or dark gray.

Immature Description

Immature female like adult, except darker and duller, without white at front of speculum. Immature male brownish black with varying amounts of white at base of neck and breast, usually with some white on back, head mostly dark.

Range Map Help

Common Eider Range Map
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Field MarksHelp

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