Engoulevent pygmée Nyctipolus hirundinaceus

Very small nightjar with an indistinct buffy throat. Ground color is variable between subspecies, with some paler and others darker. In flight, note the white wing stripes in both sexes. Males have two white patches on tail. Found in wooded rocky caatinga (dry scrubby forest), where it roosts on rock outcrops and boulders. The song is a short “wheeo.”