The Ladder-tailed nightjar (Hydropsalis climacocerca), is a species of nightjar in the Caprimulgidae family. It is found in the Amazon Basin of Brazil with the Guianas, Guyana, Suriname, French Guiana, and also Colombia, Ecuador, Peru and Bolivia; it is also in Venezuela. Its natural habitats are subtropical or tropical moist shrubland, rivers, and freshwater lakes. As a species that hunts airborne insects, etc. at night, its large eyes are noteworthy; a large wide mouth also goes along with this feeding strategy.