Brewster’s Warbler is a hybrid between the Blue-Winged Warbler (Vermivora cyanoptera) and the Golden-Winged Warbler (Vermivora chrysoptera).
Adult Brewster’s Warblers have the bold, black eye line that starts from the bill and extends to the back of its eyes. Their foreheads are bright yellow and make the black band stand out. Their throats are white, and their breast and belly are grayish with some spattering of yellow.
Their backs are bluish-gray, and their wings have yellow double wing bars. Females and juveniles have the same coloring but in a lighter shade.
- Vermivora leucobronchialis
- Length: 4.75 inches (12 cm)
- Weight: 0.35 oz (9.9 g)
- Wingspan: 7.5 inches (19 cm)
Brewster’s Warblers breed in eastern US states and migrate to Mexico, Central, and the Caribbean for winter.
Habitat And Diet
You can find Brewster’s Warblers in old or abandoned fields with plenty of trees, old and new. They will also stay in thickets and bushy meadows.
Nests of Brewster’s Warblers are often found at the base of a tree or hidden in shrubs on or low to the ground. Females use rootlets, leaves, and mosses and line the nests with fine grass and animal hair. They lay three to five eggs.
There are two other hybrids resulting from the cross between Blue-winged Warblers and Golden-winged Warblers: Lawrence’s Warbler and Burket’s Warbler.