The Blue-winged Warbler is a small warbler at 11.4 to 12.7 cm (4.5 to 5.0 in) long, with a wingspan of 17 to 19.5 cm (6.7 to 7.7 in). The breeding plumage of the male consists of a bright yellow head, breast and underparts. There is no streaking of the underparts of the bird. It has a narrow black line though the eyes and light blueish gray with two white wing-bars, which are diagnostic field marks. The female is duller overall with less yellow on the crown. Immatures are olive green with similar wings to the adults.


Habitat and Distribution

Blue-winged Warblers are migratory. They winter in southern Central America and breed from east-central Nebraska to southern Minnesota, Wisconsin, Michigan and southern Ontario in the north to Central New York, southern Vermont, Southern New Hampshire and New England to the east, South to western South Carolina, northern Georgia, northern Alabama, eastern Tennessee and southern Missouri.


Feeding

The diet consists of insects, and spiders.


Breeding

Blue-winged Warblers nest on the ground or low in a bush, laying 4-7 eggs in a cup nest. The females incubate the eggs for 10 to 11 days. The young fledge in 8 to 10 days.


Calls and Songs

The song is a series of buzzing notes. The call is a sharp chip.