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2016-06-24
Tyumen region, Isetskiy district |
© Nadezhda Bogomyakova
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Slavonian Grebe in breeding plumage have black-brownish upperparts; upperhead, throat and long collar-feathers are black; eye-strip is pale-rusty; fore and flanks of neck. Craw, breast-flanks and body-flanks are rusty; undertail is smoky; underparts and majority of secondaries are white. Bill is black, and yellowish in base; lags are blackish in outer parts and olive-grey in inner ones. Eyes are red. Winter plumage has lack of rusty and collar; head-flanks and chin are white, fore-neck is smoky; flanks are with grey patches. Juveniles are similar on winter adults but have slightly greyer mantle. Sizes: wing 132-153, bill 21-27 мм. Weight 250-340 gr.