Habitat
Gallery forest, monte and transitional woodlands, flooded grasslands and patches of chaco-woodland, with islands of Geoffroea decorticans, in or near savannas and grasslands, marshland, swamps, campo cerrado, lagoon edges with spiny scrub and along streams, pools and flooded palm groves. From sea-level - 1,100 m.
Southern Brazil (Distrito Federal and Minas Gerais, patchily south to Rio Grande do Sul), central and southern Paraguay (Concepción to Misiones) and northern and north-eastern Argentina (Misiones to Buenos Aires).
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is 10,000 (2010) and decreasing.
Status NT
Habitat destruction due to intensive grazing, wildfires and seasonal burning and, in some places, agricultural expansion, is the main threat.
For more information see BirdLife International Species Factsheet.
Sickle-winged Nightjar (Eleothreptus anomalus) [XC408023]
by Nestor Fari\u00f1a from Reserva Natural Rinc\u00f3n de Santa Mar\u00eda. Ituzaing\u00f3, Corrientes, Argentina (voz de contacto)
Sickle-winged Nightjar (Eleothreptus anomalus) [XC11347]
by Guilherme de Melo Becher from Reserva Natural Rinc\u00f3n de Santa Mar\u00eda. Ituzaing\u00f3, Corrientes, Argentina (song, canto y sonido mec\u00e1nico o instrumental)
Subspecies
Closest relative may be White-winged Nightjar (Eleothreptus candicans), which may even be congeneric.
BirdLife International Species Factsheet