Eider

Definition and stakes

A. E. Nordenskiöld,  The Voyage of the Vega round Asia and Europe…

“ On Novaya Zemlya, too, the eider is common. It breeds, for instance, in not inconsiderable numbers on the high islands in Karmakul Bay. The eider's flesh has, it is true, but a slight flavour of train oil, but it is coarse and far inferior to that of Brünnich's guillemot. In particular, the flesh of the female while hatching is almost uneatable.
The king-duck occurs more sparingly than the common eider. On Spitzbergen it is called the "Greenland eider," on Greenland the "Spitzbergen eider," which appears to indicate that in neither place is it quite at home.
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Source: Gutenberg

Friedrich Kluge,  An Etymological Dictionary of the German Language (1891)

“ Eider, Eidergans, feminine, ‘eider-duck,’ simply Modern High German from Low German eider; the latter, like English eider, eider-duck, is from Icelandic œ̂þr (genitive œ̂þar) , œþekolla, ‘eider-duck’ (Modern Icelandic œ is pronounced like ei) . Eider-down was brought by the Hanse traders from Iceland to England and Germany, and from the latter imported into Sweden (Swedish ejder, ejderdun) . ”
Source: Wikisource

Portrait of Alfred Edmund Brehm Alfred Edmund Brehm,  From North Pole to Equator: Studies of Wild Life and Scenes in Many Lands (1896)

“ The cormorants and mergansers follow them, but the oyster-catchers, plovers, black guillemots, eider-ducks, gulls, and terns, as well as the stone-chats and water-wagtails, cannot make up their minds to forsake the island. Running birds innumerable rush up and down the shore as if pursued by the evil one; the black guillemots, which had glided up the slanting blocks of rock, squat flat down upon them and stare in innocent wonder at the strangers, and the eider-ducks prepare to make themselves invisible after their fashion when the right moment comes. ”
Source: Gutenberg

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