Field signs. Lob, streak over the eye and all the ventral side white; dorsal side light-gray, black wings with white stain. Young birds with filthy-to ohristym bloom back and abdominal side; ends of the central steering feathers and domestic secondary makhovaya feathers ohristye. Wing 120-126 mm (Ivanov, Shtegman, 1978). Distribution. South Primorsky Krai (Ivanov, Shtegman, 1978). References. |