The Australian owlet-nightjar (Aegotheles cristatus), is a species of owlet-nightjar found in open woodland across Australia and in southern New Guinea. It is colloquially known as the moth owl. It is the most common of the owlet-nightjars, and the best known of this secretive family. It is the most common nocturnal bird in Australia, and despite suffering from predation and competition by introduced species it is not considered threatened.