Prothonotary Warbler
Prothonotary Warbler: Medium-sized warbler with olive-green back and blue-gray wings and tail. Head, neck, and underparts are vibrant yellow and the undertail coverts are white. Bill, legs and feet are black. The only eastern warbler that nests in tree hollows. Once called the Golden Swamp Warbler.
● Song:
"sweet-sweet-sweet-sweet-sweet -sweet-sweet", "chip"
● Foraging & Feeding:
Prothonotary Warbler: Eats mostly insects, but also fruits and seeds; forages in trees, shrubs, and on the ground.
● Breeding & nesting:
Prothonotary Warbler: Four to six pink or cream eggs, spotted with brown and gray, are laid in a tree cavity, stump hole, birdhouse, or other man-made structure, such as a mailbox. The cavity is stuffed with mosses to form a nest cup. Incubation ranges from 12 to 14 days and is carried out by the female.
● Similar species:
Prothonotary Warbler: Female Yellow Warbler has yellow wings and undertail coverts. Blue-winged Warbler has black eye-lines and pale wing-bars.