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Sanderling

Calidris alba (Pallas, 1764)

Побережник білий | Песчанка
autumn

2015-09-06
Kinburnska Kosa
© Sergey Ryzhkov

Description

Sanderling is less than Starling. In breeding plumage upperparts, head, neck and breast are mostly rufous, belly is white. It is distinguished from Little Stint by larger size and by mottled deep rufous throat, fore-neck and breast, with contrast border with white belly. From Temminck's Stint it is distinguished by size, by majority of rufous in coloring and by black legs. In fly underwings are white, there is broad white band on upperwing. Winter plumage of adult birds are mostly pale-grey and white, with dark flight feathers; these are distinctive features of Sanderling. However not all birds moulted before the autumn migration, majority of birds migrate in mix plumage. Some individuals have expanded spring (pre-breeding) moulting, these birds arrive having in breeding plumage some winter feathers. Juveniles are darker than adults; its upperparts are continuous alligation of dark-brownish and pale spots; upperparts and breast have slightly buffy tinge; pattern on wing is as on adults. Main distinctive feature is tree-toed legs, lack of rear toe. Weight 40-60 grams, length 20-21, wing 11,6-13,3, wingspan 36-39 cm.

References

В.К.Рябицев. "Птицы Урала, Приуралья и Западной Сибири". Екатеринбург, Изд-во Уральского университета, 2000. "Птицы Казахстана" том 2. Алма-Ата, 1962.

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