A long-tailed, boldly patterned nightjar with extensive gray markings on the upperparts, bold buff, black, and white markings, and a white throat. In flight, shows prominent white patches on outer wings and tail. Inhabits lowland forest, edge, scrub, and mangroves. Confined to Sulawesi and the Sula islands. Distinguished from the montane Diabolical Nightjar by its lowland habitat, paler plumage, extensive white in tail, and lack of a buff collar. Tail is longer than Savanna Nightjar’s. Gives a distinctive, explosive “tok-tok-toktrrtrr” call that speeds up, then decreases in volume at the end.