Dark nighthawk, most often seen flying over the forest canopy or a river at dusk. Overall brown with richer rufous belly and underwings; small white throat patch is sometimes difficult to see. Short tail is noticeable in flight. Unlike many other similar species, does not show white patches in wings. Sexes alike. Even less conspicuous than other nighthawks, often appearing fleetingly in the twilight and very rarely seen roosting during the day.