Length: About 4½ inches; one of the smaller warblers.
Male: Upper parts bright blue; head and back streaked with black; light
streak above eye; white throat, breast, and belly, with a
bluish-black line that extends across the breast and down each side;
wings with two broad white bars; inner webs of all except the middle
tail-feathers with small white patches near tips.
Female: Bluish-olive above, under parts pale yellow; light streak over
eye; wings with white bars; tail-feathers with white tips.
Song: Mr. Stone describes the song of the Cerulean warbler as "an almost
continuous '_zwee-zwee, zwee, wee-ee_' during the nesting
season."[152]
Habitat: "They are numerous in the maple woods on the hillsides
overlooking the swamp, as well as in the swamp itself," writes Mr.
Stone.[152]
Range: Eastern North America. Breeds mainly from southeastern Nebraska,
Minnesota, southern Michigan and Ontario, western New York,
Pennsylvania, and West Virginia, south to Texas, Louisiana, and
Alabama.