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adult
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2019-06-27
о. Shokalsky, Yamalo-Nenets Autonomous Okrug |
© Dmitry Nizovtsev
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Common and numerous breeder in the north of Siberia in arctic, common, and northern scrubby tundras. Numerous migrant in the Western Siberia; numbers of migrants at stopovers vary much in the Eastern Siberia.<br>Two subspecies in Siberia: A.a.albifrons west from the lower stream of Lena River, and somewhat larger A.a.frontalis eastward.
В.К.Рябицев. "Птицы Сибири". Москва-Екатеринбург, Изд-во "Кабинетный ученый", 2014.