Appearance: Black-throated blue warblers are small birds about 5″ long, midnight/steel blue back, black throat, and a white belly
Diet: Insects and fruit.
Feeder food: Suet, peanut butter, and nectar.
Habitat: Prefer mature deciduous and mixed evergreen woodlands with plenty of thick shrubs.
Nesting: They build a cup-shaped nest in a shrub made of bark and spider webs. 1-3 broods/season, 2-5 eggs/brood, eggs are small .6″-.8″, creamy white and speckled. Incubation lasts for about 12-13 days.
Migration: Black-throated blue warblers are true migrators. They head north in spring to breed and raise their young. In the fall, they migrate south to winter in southern Florida and the Caribbean.
Breeding range: Northern Wisconsin, Northern Michigan, eastern Tennessee & Kentucky, West Virginia, Pennsylvania, Pennsylvania, the New England states, and Canada’s southern provinces of Ontario and Quebec.
Winter range: Southern Florida and the Caribbean islands.
Range Map
