General

Tennessee Warbler: Small warbler with olive-green upperparts, white underparts, and olive-gray washed sides. Darker head has white eyebrows and dark eyestripes. Wings are plain gray. Female and juvenile are duller and have pale gray-yellow underparts.

Range and Habitat

Tennessee Warbler: Breeds from Yukon, Manitoba, and Labrador south to British Columbia, Wisconsin, southern Ontario, and Maine. Spends winters in the tropics. Preferred habitats include open mixed woodlands in the breeding season; trees and bushes during migration.

Breeding and Nesting

Tennessee Warbler: Four to seven brown splotched, white to creamy white eggs are laid in a nest lined with fine grass and built on the ground, usually well hidden under a shrub or in a moss clump under a tussock. Incubation ranges from 11 to 12 days and is carried out by the female.

Foraging and Feeding

Tennessee Warbler: Diet consists of insects, such as small beetles, caterpillars, grasshoppers, and aphids, spiders, sumac seeds, and poison ivy berries; also drinks juices from grapes by poking a hole in the fruit with its bill.

Readily Eats

Sugar Water, Fruit, Nut Pieces

Vocalization

Tennessee Warbler: Song is a loud "seet, seet, seet" or "chip, chip, chip."

Similar Species

Tennessee Warbler: Red-eyed Vireo is larger, has red eyes, and thicker bill. Winter Philadelphia Vireo is larger and has thicker bill. Orange-crowned Warbler has yellow undertail coverts and blurry streaks on breast.