Field signs. It looks like sapsana differs rzhavchatoy overtones and headform generally brighter overall tone color of feathers. The length of the wing males 275-310 (286) mm, females - 316-348 (321) mm (Stepanyan, 1990, 2003). Most authors believe this type only subspecies sapsana (Ivanov, Shtegman, 1978). Distribution. Within Russia assumed the south-east of Altai (Stepanyan, 1990, 2003). References. |