
Common Eider
NameCommon Eider
Common NameCommon Eider
Scientific NameSomateria mollissima
FamilyAnatidae
Wingspan (cm)100
Length (cm)60
Weight (g)2350
Plumage DetailsAdult males (as pictured) have a black cap, white head and back, a pale green patch on the nape, and a black body with white patches on the flanks. The bill is large, wedge-shaped, and greyish-green.
Vocalization / CallMales produce a soft, cooing 'ah-ooo-ooo' sound, especially during courtship. Females typically emit a harsh 'karr-karr' or 'gog-gog' call.
Primary Dietcarnivore
Primary Habitatscoastal, tundra
Conservation Statusleast-concern
Geographic RangeBreeds in Arctic and subarctic regions of North America, Europe, and Asia. Winters along temperate coasts, extending south of its breeding range.
Identifying FeaturesLarge size, Wedge-shaped bill, Male's striking black and white plumage, Male's pale green nape patch, Robust body adapted for diving
Description
The Common Eider is a large sea duck known for its robust body and distinctive wedge-shaped bill. Males display striking black and white plumage with a pale green nape, while females are mottled brown. They are expert divers, feeding primarily on mollusks in cold coastal waters.





