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Long-tailed Duck

Clangula hyemalis (Linnaeus, 1758)

Морянка
winter male

2016-02-06
Baikal. Listyanka.
© Mihail Ivanov

Description

Male Long-tailed Duck in breeding plumage have dark-brownish head, neck, craw, breast and upperparts; head-flanks are grey, eye-ring is white. Feathers of fore-mantle and shoulders have broad buffy edges. Shoulders' feathers are elongated. Belly is white, body-flanks are greyish. Two central tail feathers are much elongated; them length is more 150-200 mm. In winter plumage (from end of October to March-April) male has clear white forehead, crown, throat, craw and rear-neck. Lores and cheeks are grey; neck-flanks with brownish spot. Fore-mantle, wings, mantle and uppertail are dark-brownish. Rear-breast and all other underparts are white, flanks are greyish. Shoulders' feathers are ashy-grey, rear of them are elongated. Base of male's bill is black, its middle part is yellowish-pink, tip is black; legs are greyish, eyes are brownish. Female have black-brown crown, rear-neck, chin and neck-flanks spots. Fore-neck, neck-flanks and eye-area are whitish. Upperparts are dark-brownish; shoulders, wing coverts and uppertail are with whitish edges of feathers. Craw is grey-brown; all other underparts are white. Flight feathers are brownish, tail is greyish. Central tail feathers aren't elongated. Bill is brown green-tinged, legs are greenish-black, eyes are yellowish. Juveniles are similar on female but greyer than it. Sizes: wing 180-240 mm, tarsus 32-38 mm, bill 24-29 mm, females tail 55-70 mm, males tail - up to 250 mm. Weight 650-850 gr.

Distribution

The most numerous breeding duck in tundra; breeds also in forest-tundra and in some areas in northern taiga. Mor south, only innumerous migrant; the main part of birds migrate along sea shores. Little numbers winter in parts of rivers and lakes, wich are not ice-covered; in particular, tens or hundreds birds winter in the source of Angara River at Lake Baikal.

References

Gavrilov E. I., Gavrilov A. E. "The Birds of Kazakhstan". Almaty, 2005.
В.К.Рябицев. "Птицы Сибири". Москва-Екатеринбург, Изд-во "Кабинетный ученый", 2014.

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