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The Australian owlet-nightjar (Aegotheles cristatus) is a nocturnal bird found in open woodland across Australia and in southern New Guinea. It is colloquially known as the moth owl. It is the most common nocturnal bird in Australia, and despite suffering from predation and competition by introduced species it is not considered threatened. [1]
The relationship between the owlet-nightjars and the (traditional) Caprimulgiformes has long been controversial and obscure and remains so today: in the 19th century they were regarded as a subfamily of the frogmouths, and they are still generally considered to be related to the frogmouths and/or the nightjars.
An mRNA analysis of the owlet-nightjars published in 2003 found that the Karimui owlet-nightjar was more closely related to the Vogelkop owlet-nightjar (Aegotheles affinis) than it was to the barred owlet-nightjar. [2] It was only known from the type specimen until it was rediscovered in 2016. [3] It is now treated as a distinct species. [4]
The New Caledonian owlet-nightjar (Aegotheles savesi), also known as the enigmatic owlet-nightjar, is a large owlet-nightjar with vermiculated grey-brown and black plumage. It has a long, slightly rounded tail, short, rounded wings, and long, stout legs. Its voice is unknown, but other owlet-nightjar species make churring and whistling sounds.
[2] Crepuscular birds include the common nighthawk, barn owl, [19] owlet-nightjar, chimney swift, American woodcock, spotted crake, white-breasted waterhen, [20] European nightjars, [8] and common buzzards. [21] Many moths, beetles, flies, and other insects are crepuscular and vespertine.
Nightjars can occupy all elevations from sea level to 4,200 m (13,800 ft), and a number of species are montane specialists. Nightjars occupy a wide range of habitats, from deserts to rainforests but are most common in open country with some vegetation. [8] The nighthawks are confined to the New World, and the eared nightjars to Asia and ...
The Vogelkop owlet-nightjar (Aegotheles affinis) or allied owlet-nightjar is a species of bird in the family Aegothelidae. It can be found in New Guinea . It is known from Bird's Head Peninsula and Eastern Highlands Province .
Wallace's owlet-nightjar (Aegotheles wallacii) is a species of bird in the family Aegothelidae. It is found in New Guinea. It is named after Alfred Russel Wallace, a British naturalist, explorer, geographer, and biologist. [2]