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But Steller's eider is distinctly smaller and usually shows white wing-bars.
Steller's Eider, Polysticta stelleri, is in a different genus despite its name.
Steller's Eider spring migration surveys Southwest Alaska 2007.
The Steller's Eider is thought to have hybridised with the Common Eider on at least two occasions in the wild.
The harbor at Vadsø can produce all three species of Eider, including the small and stunning Steller's Eider.
Steller's Eider (Polysticta stelleri)
In this way it is considered an ecological counterpart of the North Pacific/North Asian Steller's Eider.
The coast is also home to many breeding waterbirds including snow goose, spectacled eider, steller's eider, king eider, and yellow-billed loon.
In October, ivory gulls appear near Point Barrow and brant, emperor geese, and Steller's eiders congregate at Izembek Lagoon.
Endangered species at Cape Krusenstern include the possibly extinct Eskimo curlew, and threatened spectacled eider and Steller's eider.
The Steller's Eider (Polysticta stelleri) is a smallish sea duck that breeds along the Arctic coasts of eastern Siberia and Alaska.
Culling has taken place to a limited extent in Alaska, where the population increase in Common Ravens is threatening the vulnerable Steller's Eider (Polysticta stelleri).
STELLER'S EIDER Polysticta stelleri.
Migratory birds of note with critical nesting or feeding habitat on the islands include such species as Steller's Eider, Pacific Golden Plover, and Aleutian Tern.
The Steller's Eider is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) applies.
Izembek Wilderness hosts a quarter-million migratory birds every fall, including the entire world's population of black brants and thousands of Canada and emperor geese, Steller's eiders, and various species of duck and shorebird.
The park supports a diversity of fish and wildlife and are an important nesitng site for sea birds such as puffins, cormorants, kittiwakes, and guillemots, emperor goose, harlequin ducks, Steller's eider, and notably the bald eagle.
Other birds of the coastal wetlands include bristle-thighed curlew, dotterel, bar-tailed godwit, and Pacific Golden Plover while seabirds of include Steller's Eider and the large colonies of murre on the islands.
It is a highly sensitive ecosystem due to the use of the area as stop-over by many migratory birds, like barnacle geese and Steller's Eider, and as a breeding and nesting ground for over 247 species of birds, of which the most common is the eider duck.
Four of these species are threatened in some of their habitats: the Harlequin Duck in eastern Canada, the Barrow's Goldeneye in Eastern Canada and Maine, and the Spectacled Eider and Steller's Eider in the United States.
Scanning the area with our glasses, we found a party of eider duck and were excited to see that the flock not only contained common and king eider, but a number of Steller's eider, a 'new' bird for all of us, which breeds along the Siberian coast and into Alaska.
Of the 6 species of birds and mammals that Steller discovered during the voyage, two are extinct (the Steller's sea cow and the Spectacled Cormorant), and three are endangered or in severe decline (Steller's sea lion, Steller's Eider and Steller's Sea Eagle).
Steller's Eider (Polysticta stelleri)