Field signs. Perya mezhlopatochnoy area and shoulder feathers dark brown with light kaemkami; rear of the back and upper body tail feathers are white, the latter with narrow dark pestrinkami; steering white feathers with five to seven black cross bars. Ventral edge cream-white with numerous dark pestrinami, longitudinal neck and eobu, triangle and rhombic on the chest and sides, mid-abdomen and podhvoste white. Wing 230-260 mm (Ivanov, Shtegman, 1978). Distribution. Borders grounds clarification is not enough. Endangered species. Nest presumably on the space occupied southern strip taiga zone of Western Siberia to the Ural mountain ridge to the east to the valley of the Ob. Actual evidence of nesting areas are available for packaging and Barnaul (Stepanyan, 1990, 2003). References. |
