The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological species. A series of Regional Red Lists are produced by countries and organizations, which assess the risk of extinction to species within a political management unit.
Owlet-nightjars are small crepuscular birds related to the nightjars and frogmouths. Most are native to New Guinea, but some species extend to Australia, the Moluccas, and New Caledonia. A flightless species from New Zealand is extinct. There is a single monotypic family Aegothelidae with the genus Aegotheles.
The Australian owlet-nightjar 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.
Drepanornis is a genus of bird-of-paradise found in forests of New Guinea. They have long decurved sickle-like bills and an overall brown plumage.
The black-billed sicklebill, also known as the buff-tailed sicklebill, is a species of bird-of-paradise. It, along with its congener, are the only members of the genus Drepanornis.
The New Caledonian lorikeet is a potentially extinct lorikeet endemic to the Melanesian island of New Caledonia.
The New Caledonian owlet-nightjar, 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. It is the second-largest known owlet-nightjar, much larger than the Australian owlet-nightjar.
The New Zealand owlet-nightjar is an extinct, comparatively large species of owlet-nightjar formerly endemic to the islands of New Zealand. Fossil remains indicate the species was once widespread across both the North Island and the South Island.
The buff-tailed sicklebill is a species of hermit hummingbird from the lower Andes and adjacent west Amazonian lowlands from southern Colombia and northern Ecuador to Peru and Bolivia.
The barred owlet-nightjar is a species of bird in the owlet-nightjar family Aegothelidae. It is found in New Guinea. The species was originally thought to be the same species as the Australian owlet-nightjar, until that species was found within the range of the barred owlet-nightjar. It was also considered to be the same species as the Vogelkop owlet-nightjar. There are three subspecies, the nominate, from south-eastern New Guinea, A. b. wiedenfeldi from northern New Guinea, and A. b. plumifer from the D’Entrecasteaux Islands.
The Moluccan owlet-nightjar, also known as the long-whiskered owlet-nightjar, is a species of bird in the family Aegothelidae. It is endemic to the northern Moluccas.
The feline owlet-nightjar is a species of bird in the family Aegothelidae. It is found in New Guinea. Its natural habitat is subtropical or tropical moist montane forests.
The starry owlet-nightjar, also known as the spangled owlet-nightjar, is a species of bird in the family Aegothelidae. It is endemic to Papua New Guinea. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.
Wallace's owlet-nightjar is a species of bird in the family Aegothelidae. It is found in New Guinea.
Apodimorphae is a clade of strisorean birds that include the extant families Trochilidae (hummingbirds), Hemiprocnidae (treeswifts), Apodidae (swifts), and Aegothelidae (owlet-nightjars), as well as many fossil families. This grouping of birds has been supported in a variety of recent studies. There are two higher classification schemes that have been proposed for the apodimorph families. One is all strisorean birds are classified in the order Caprimulgiformes, while the other is the strisorean birds are split into several distinct orders. In this case Apodimorphae is a subclade of Strisores that includes the orders Aegotheliformes and the Apodiformes. A similar name for the group Daedalornithes has been used for the owlet-night-apodiform clade, there is a difference between the two names with Apodimorphae defined as the total-group and Daedalornithes defined as the crown group.
The Vogelkop owlet-nightjar 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.
