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Somateria mollissima

(Black and White Coot)

Common Names

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Click on the language to view common names.

Common Names in Dutch:

Eidereend

Common Names in English:

American Eider, Big Sea Duck, Black and White Coot, Black-Throated Eider, Canvasback, Common Eider, Dresser's Eider, Eider, Eider Duck, Eskimo Duck, Isle of Shoals Duck, Laying Duck, Looby, Northern Eider, Pacific Eider, Sea Duck, Squam Duck, Wamp

Common Names in French:

Eider Duvet, Eider à Duvet

Common Names in German:

Eiderente

Common Names in Hebrew:

אדרית שחורת-כיפה

Common Names in Italian:

Edredone

Common Names in Japanese:

ホンケワタガモ

Common Names in Russian:

Гага обыкновенная, Обыкновенная гага, Obyknovennaya Gaga

Common Names in Spanish:

Eider Común

Description

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Physical Description

Adult Eastern Male: Head : Cap: black Color: white with two pale green patches on back Bill: yellow-orange in summer; otherwise gray to green Body: Back: white Sides: black Tail: black.

Color:

Adult male alternate: Several races · Black crown · Greenish rear of head · Dark or yellow bill · Black underparts · White upperparts and breast · Black tail and around tail · Immature male similar to female but has white breast

Adult female: Dark gray to rusty-brown plumage with fine black barring · Barring on flanks in lines

Size/Age/Growth

About 17 to 27 inches long, with a wingspan of 35 to 42 inches. Adults weigh about 78.4 ounces .

Biology

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Diet

Almost exclusively aquatic invertebrates , with some fish.

Reproduction

Migration

Some migrate

Taxonomy

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Notes

Name Status: Accepted Name . Latest taxonomic scrutiny: 17-Oct-2001.

Similar Species

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King Eider, Spectacled Eider

Members of the genus Somateria

There are approximately 17 species in this genus:

S. dispar · S. fischeri (Spectacled Eider) · S. fisheri · S. molissima · S. mollisima · S. mollissima (Black-Throated Eider) · S. mollissima borealis · S. mollissima dresseri · S. mollissima faeroeensis · S. mollissima mollissima (Black and White Coot) · S. mollissima sedentaria · S. mollissima ssp · S. mollissima v · S. mollissima v-nigra (Pacific Eider) · S. mollissima v-nigrum · S. spectabilis (King Eider) · S. v-nigra

More Info

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Further Reading

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal November 26, 2007:

Identifiers

Last Revised: 2009-06-19