Long, pigeon-shaped birds, whose backs are grayish brown with a bronze lustre
and whose under parts are whitish. Bill long and curved. Tail long; raised and
drooped slowly while the bird is perching. Two toes point forward and two
backward. Call-note loud and like a tree-toad's rattle. Song lacking. Birds of
low trees and undergrowth, where they also nest; partial to neighborhood of
streams, or wherever the tent caterpillar is abundant. Habits rather solitary,
silent, and eccentric. Migratory.
Yellow-billed Cuckoo.
Black-billed Cuckoo.