General

Canada Warbler: Small warbler with slate-gray upperparts, bright yellow underparts, black-streaked necklace, and white vent. Eye-ring is yellow. Female is duller with gray upperparts.

Range and Habitat

Canada Warbler: Breeds from southeastern Canada across the northern states and the Canadian provinces east of the Rockies. Also breeds along the Appalachian Mountains into northern Georgia. Spends winters in the tropics of northern South America. Preferred habitats include cool, moist woodlands with abundant undergrowth.

Breeding and Nesting

Canada Warbler: Three to five white or buff eggs, marked with brown, purple, and gray, are laid in a nest made of dried leaves and grass built on or near the ground at the base of a stump or in a fern clump. Eggs are incubated for approximately 12 days by the female.

Foraging and Feeding

Canada Warbler: Diet consists primarily of flying insects, including mosquitoes, flies, moths, and beetles; also eats small, hairless caterpillars and spiders. Forages in shrubs and lower tree branches of both coniferous and deciduous trees, and occasionally on the ground; most frequently hops along branches, but will catch insects on the wing.

Vocalization

Canada Warbler: Song is a rapid, sputtering warble.

Similar Species

Canada Warbler: Kentucky Warbler lacks black necklace, has yellow undertail coverts, and olive upperparts.