Eastern Marsh Harrier
Circus aeruginosus spilonotus Kaup, 1847
Шығыс саз құладыны
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Description
Male in definitive plumage has greyish-white head with neat dark-brown streaks; mantle is black with grey edges of feathers; scapulars and upper tail coverts are black with silvery-grey bars; cheeks and ear coverts are black with greyish edges and streaks. First five primaries are white in base, black in top, with black outer web which is silvery-tinged. Others primaries are grey with black bars and white spots on inner webs. Under parts are white with black rachis of feathers, sometimes with buffy tinge on craw and breast. Female in definitive plumage has darker head and top-neck; mantle and scapulars lighter than in aeruginosus.
Distribution
Probably occurs in eastern and south-eastern Kazakhstan on migration. Stray birds of unidentified subspecies were observed on Markakol lake; on lake at confluence Bayancol and Tekes rivers in 1948-1950 at 2000 m; and 21 August 1973 in highlands of Zailiyskiy Alatau ridge (Big Almaty lake).
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