Field signs. Spina grave dark pestrinami, some shoulder feathers are ryzhuyu predvershinnuyu sling; throat, goiter and chest white with dark pestrinami, larger chest, belly white. Young bird feathers on its back with light kaemkami, rusty sling on the shoulder feathers missing; at zobu and breast dirty-smoked raid, pestriny smaller than adult birds, and less clear. Wing 173-190 mm (Ivanov, Shtegman, 1978). Distribution. Verhoyanskogo from ridge to the east to the Chukchi Peninsula and the Koryak coast of the Bering Sea. To the north until the mountain of blasti Delta Kolyma and Chukotka, to the south to the ridges becoming Dzhugdzhur, south-zapdnoy tip Kolymskogo (Stepanyan, 1990, 2003). References. |
