Blue-winged Warbler
Vermivora cyanoptera
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形态与习性
The blue-winged warbler (Vermivora cyanoptera) is a fairly common migratory New World warbler, 11.5 cm (4.5 in) long and weighing 8.5 g (0.30 oz). It breeds in eastern North America in southern Ontario and the eastern United States and winters in southern Central America. Its breeding range is extending northwards, where it is replacing the very closely related golden-winged warbler (Vermivora chrysoptera).
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