Siberian Black-backed Gull
Larus heuglini antelius Iredale, 1913
Сібір бозшағаласы
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Description
From other subspecies distinguished by the dark lead-grey mantle. Legs are yellow.
Distribution
Probably occasionally nests in the northern regions of Kazakhstan. In particular the few adult birds collected in June 20, 1929 at the Toktas lake in 80 km northwest from Kustanai. Also in the Kustanai area it periodically observed in the early to mid-October.
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