The Eastern Whip-poor-will, (Antrostomus vociferus), is a medium-sized (22–27 cm) nightjar bird from North and Central America. The whip-poor-will is commonly heard within its range, but less often seen because of its superior camouflage. It is named onomatopoeically after its song.
The frogmouth birds are a group of nocturnal birds related to the nightjars. They are named for their large flattened hooked bills and huge frog-like gape, which they use to capture insects. Their flight is weak. They rest horizontally on branches during the day, camouflaged by their cryptic plumage. Up to three white eggs are laid in the fork of a branch, and are incubated by the female at night and the male in the day. Tawny Frogmouth