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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.


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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, 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 ?
But nearly every one of a dozen experts I have asked has agreed that shifting predator pressure likely has been responsible for some of the eider decline.
In December 2005, the Court had already ruled in its judgement (C-344/03) that Finland had failed to fulfil its obligations under the Birds Directive due to spring hunting of male eiders, among other species in land province.
There must have been a loophole or two, as there are also records of cushions made of "Cuthbert doun" - downy feathers from St Cuthbert's eider ducks on Farne.
1 Comply Or Die, trained by David Pipe, won both the Eider and the Grand National in 2008
Now connections are weighing up their options for the dour stayer, who is a 12-1 chance with the sponsors for the Eider on February 24.
We obtained health scores twice daily for all birds, and we weighed each eider daily.
He made a name for himself guiding open ocean eider hunts for roughly 15 years before "retiring" to just hunt, float his rig, and watch 'em fly.
When Northstar was built in 2001, knowledge of eider migration near the island was limited.
Two observers in the aircraft located and estimated the size of all eider flocks (including single birds) and the number of motorboats with hunters.
HEAVY-DUTY frost sheets will be deployed at Newcastle in an attempt to ensure Saturday's feature Eider Chase meeting gets the go-ahead, with the track raceable yesterday.
SHOTGUN PADDY warms up for a possible Grand National bid by making the long journey north for Newcastle's Eider Chase on Saturday.