Field signs. Spinnaya side aspidnaya numerous whitish and ohristymi pestrinkami; ventral side white with numerous black cross bars; at the throat and zobu dark pestriny are particularly crowded, with many feathers here, except for dark kaemki, have predvershinnoe ohristoe spot. Outdoor steering feathers pure-white or white for long. Do birds in the winter operenii ventral side, the band at zasheyke, sides and many nadhvostya shoulder feathers white. Young birds like a winter adult, but the ventral side they are with pestrinami. Wing 126-142 mm. Beak (from the front edge of nostrils to the top) 7.9-10.5 mm (Ivanov, Shtegman, 1978). Distribution. Summer has been on the o-ve Wrangel, on the Chukchi p-Ove (zal. Cross), on-wah Diomida and Okhotsk coast in the south-west to 59-61 ° N At nesting found all times - in the subalpine zone Kolymskogo hr. (60 ° 50 'north latitude and 155 ° 30' E); winter off the coast of Kamchatka and the Kuril-VOVES (Ivanov, Shtegman, 1978). References. |
