basic information
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male
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2015-05-16
Irkutsk. Novoleninskie Marsh. |
© Mihail Ivanov
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In Siberia, breeds in its most part, north to south of tundra.
Common breeding migrant and numerous during migration. Inhabits steppe lakes and rivers with reed-beds or willow bushes, water ponds in the taiga zone, and mountain lakes with forested shore up to 1500 m in Altai. Appears mid-April. Migrates mainly at night and at dawn in small flocks of several dozen, but sometimes 100-150, resting by day and gathering in big numbers. Migration completed by end May. Breeds in separate pairs. Nest is built on shore near water in shallow hollow, on small islands or on floating reed stems from dry grasses, reed leaves and lined with down. Clutches of 6-12 eggs end May – early July. Juveniles hatch early June – end July, and may not fly until end August. Moulting males noted mid-July – August, but not known where they concentrate. Autumn migration is very late, from mid-September to October, and continues until water freezes, early – mid-November.
В.К.Рябицев. "Птицы Сибири". Москва-Екатеринбург, Изд-во "Кабинетный ученый", 2014.