Field signs. Adults poultry dust-sizye krylyamii with dark blackish ring around the eyes. Young birds burovatye. Wing 152-170 mm (Ivanov, Shtegman, 1978). Distribution. Kuril Islands to the south to about Islands Brouton, Commander, Shantarskie; south-eastern coast of Kamchatka (Stepanyan, 1990, 2003). References. |