Family: Parulidae, Wood Warblers view all from this family

Description 5" (13 cm). In spring, male greenish above, white below, with gray cap, white line over eye, dusky line through eye. In fall, olive above, yellowish below.

Habitat Open mixed woodlands in the breeding season; in trees and bushes during migration.

Nesting 5 or 6 brown-spotted white eggs in a nest lined with fine grasses, placed on the ground, and usually well hidden under a shrub or in a moss clump under a tussock.

Range Breeds from Yukon, Manitoba, and Labrador south to British Columbia, Wisconsin, southern Ontario, and Maine. Winters in tropics.

Voice   A sharp, staccato di-dit-di-dit-swit-swit-swit-chip-chip-chip-chip-chip, fastest at the end; song often comprised of 3 distinct parts.

Discussion This warbler was discovered in 1811 by the noted ornithologist Alexander Wilson, who chose its common name because he first saw it in Tennessee. Its numbers fluctuate greatly from year to year; at times it is very numerous, and a dozen or more may be observed in a single tree, while in other years very few are seen.