The sickle-winged nightjar is a species of nightjar in the family Caprimulgidae. It is found in Argentina, Brazil, Paraguay and possibly Uruguay.
Region
Southern South America
Typical Environment
Occurs in northeastern Argentina, southern and eastern Paraguay, southern and southeastern Brazil, and possibly northern Uruguay. Prefers open habitats such as native grasslands (pampas and campos), cerrado edges, savanna-like pastures, and marsh or wetland margins. It often uses lightly grazed fields, airstrips, and road verges for foraging. Local movements follow seasonal conditions, with birds shifting to areas with abundant insect prey.
Altitude Range
0–1200 m
Climate Zone
Subtropical
Ease of Keeping
Beginner friendly: 1/5
Males have distinctive long, curved outer primaries that create a sickle-like profile in display flight, giving the species its name. Like many nightjars, it nests directly on the ground without building a nest, relying on camouflage. It forages low over open country at dusk and night, catching flying insects, and is vulnerable to habitat conversion and pesticide use.
Temperament
secretive and crepuscular
Flight Pattern
buoyant, moth-like flight with agile twists and short glides
Social Behavior
Usually solitary or in pairs outside the breeding season. Nests on bare ground or leaf litter without a constructed nest, typically laying one to two eggs. Male performs display flights at dusk, showing the curved wings and flashing white patches to attract females.
Migratory Pattern
Partial migrant
Song Description
Displays soft, repeated whistles and chip notes at dusk, interspersed with gentle trills. Wing noises may accompany display flights, especially when the male banks and glides low over open ground.
