Tree Swifts: Hemiprocnidae
Behavior And Reproduction
Tree swifts are usually sedentary, staying in one area throughout the year. Birds roost, rest, during the daytime and perch standing up on branches. Tree swifts are crepuscular (kri-PUS-kyuh-lur) and nocturnal; they become active at twilight or in the evening.
Tree swifts form small groups, but they have been seen in flocks of up to fifty gray-rumped tree swifts. Birds flock to chase flying insects.
Tree swifts are monogamous (muh-NAH-guh-mus), they have only one mate. Tree swifts build tiny nests out of feathers and pieces of bark. Like other Apodiformes, tree swifts build nests with saliva, the watery liquid in their mouths. Their salvia hardens as it dries, so swifts use saliva to glue the saucer-shaped nest together. The female lays one egg. Both parents incubate the egg, keeping it warm, until it hatches after approximately three weeks. Birds fledge, grow feathers needed for flight, about three weeks later.
Predators that hunt tree swifts for food include snakes and larger birds.
- Tree Swifts: Hemiprocnidae - Crested Tree Swift (hemiprocne Coronata): Species Account
- Tree Swifts: Hemiprocnidae - Habitat
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Animal Life ResourceBirdsTree Swifts: Hemiprocnidae - Physical Characteristics, Habitat, Behavior And Reproduction, Crested Tree Swift (hemiprocne Coronata): Species Account - GEOGRAPHIC RANGE, DIET, TREE SWIFTS AND PEOPLE, CONSERVATION STATUS