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A relatively small Swift (14cm)
 Similar Species
Very difficult to distinguish from White-chinned Swift, but possible if seen well.
Central America: seemingly limited to Costa Rica where traditionally expected on the Pacific slope from the Central Valley to the Panama border; however, recently seen with some regularity by La Selva (2-300 m asl) near Puerto Viejo de SarapiquÃ on the Caribbean side.
Lowland to mid elevation. In South America reported as liking wet forest in mountains, especially if including ravines. In Costa Rica also often in lower elevation
Feeds on insects, taken in flight. Usually seen single or in pairs, often associated with Chestnut-collared Swift but also in flocks with other Swifts.
Nesting recorded from May to August, varying with rainfall. Takes different nest sites but usually cliffs with overhang. Form of nest and material also varying, usually a cup or half-cup, made with moss, liverworts, leaves or/and ferns and mud. Lays one egg.
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