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see duckduck,
common name for wild and domestic waterfowl of the family Anatidae, which also includes geese and swans. It is hunted and bred for its meat, eggs, and feathers. Strictly speaking, duck refers to the female and drake to the male.
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(ī`dər), river, 117 mi (188 km) long, rising S of Kiel, N Germany, and flowing N to the Kiel Canal before turning west and meandering to the North Sea at Tönning. It is navigable for most of its length. The Eider's lower course is regulated by locks; part of its upper course is followed by the Kiel Canal. The river separates Schleswig from Holstein.


, eider duck
any of several sea ducks of the genus Somateria, esp S. mollissima, and related genera, which occur in the N hemisphere. The male has black and white plumage, and the female is the source of eiderdown
References in periodicals archive ?
Nesting success of Common Eiders Somateria mollissima as influenced by nest-site and female characteristics in the Gulf of the St.
An artificial nest site for arctic nesting Common Eiders.
But common eiders, seabirds with a striking green band on the head, do not.
And the common eider is a sea duck waterfowl managers know little about.
The common eider is one of five species this group of managers have identified to be targeted for studies under the Venture's 2014 to 2018 strategic plan.
Population declines of King and Common eiders of the Beaufort Sea.
Half (49%) of all Spectacled Eider (Flint and Grand 1997) and 73% of all Common Eider (S.
Using radio-transmitters to improve estimates of gull predation on Common Eider ducklings.
The Migratory Bird Treaty Act of 1918 placed a 10-year moratorium on hunting common eiders.
Common eiders are the largest ducks in North America, with Atlantic Coast birds weighing up to five pounds.