Black-throated Blue Warbler

Black-throated Blue Warbler

Black-throated Blue Warbler: Small warbler that is the most strikingly sexually dimorphic of all wood warblers. Male has dark blue upperparts, black throat and mask. White underparts with black sides and white wing patch at base of primaries. Bill, legs and feet are black. The female is olive-brown.

● Song: "zwee-zwee-zwee-zweeee"

● Foraging & Feeding: Black-throated Blue Warbler: Feeds on insects and other small invertebrates. During the breeding season, forages from on the ground to high in the forest canopy; male often forages higher than female; locates a high percentage of prey from the lower surface of leaves. Small fruits are often eaten during winter.

● Breeding & nesting: Black-throated Blue Warbler: Three to five white eggs, marked and flecked with brown and gray, are laid in a nest made of leaves and grass, lined with cobwebs and hair, and set near the ground in a shrub or young tree. Incubation ranges from 12 to 13 days and is carried out by the female.

● Similar species: Black-throated Blue Warbler: Tennessee Warbler has unbroken white line behind eye and lacks white wing patch. Orange-crowned Warbler has yellow to green upperparts and yellow-green underparts.

Flight Pattern