The black-billed cuckoo, Coccyzus erythropthalmus, breeds throughout much of the northern and central United States, as well as in southern Canada. Black-billed cuckoos migrate south for the winter, with most individuals wintering in South America. The species is a rare summer resident in north-central Utah, and there is some evidence to suggest that it may occasionally breed in that area of the state.
Black-billed cuckoos typically occur in forests, woodlands, and riparian areas. Nests are built low in a tree or shrub, or on the ground. Eggs are laid in the spring; a typical clutch contains two to five eggs. Both parents incubate the eggs, which hatch in approximately two weeks. Young can fly at about three weeks of age. The black-billed cuckoo is sometimes a brood parasite, laying its eggs in the nests of other species.
Black-billed cuckoos are diurnal and eat primarily insects, although small vertebrates and berries are also consumed.