General
Palau Swiftlet: Small gray-brown swift with black-brown cap, wing linings, and tail. Gray on rump and throat. Very short black bill with wide gape. Large, black eye. Medium to long, pointed wings. Medium, slightly cleft tail. Very short, black-gray legs and feet. Feeds on a wide variety of small insects. Forages by catching prey with open mouth in flight.
Breeding and Nesting
Palau Swiftlet: Nothing is known about the breeding behavior of the Palau Swiftlet but it is probably similar to related species. Other swiftlets lay one to two gray-white eggs in a small, cup-shaped nest made of saliva and bits of vegetation and built in a cave. Incubation is carried out by both sexes for 12 days.
Foraging and Feeding
Palau Swiftlet: Feeds on small insects. Forages by flying over a variety of habitats, often high in the air, and catching insects with its open mouth during flight.
Vocalization
Palau Swiftlet: Calls emitted are insect-like buzzing chirps and rapid twittering.