The night parrot (Pezoporus occidentalis ) is a small parrot endemic to the continent of Australia. It has also been known as porcupine parrot, nocturnal ground parakeet, midnight cockatoo, solitaire, spinifex parrot and night parakeet. It is one of the most elusive and mysterious birds in the world, with no confirmed sightings of the bird between 1912 and 1979, leading to speculation that it was extinct. Sightings since 1979 have been extremely rare and the bird's population size is unknown, though based on the paucity of records it is thought to number between 50 and 249 mature individuals, and it is classified by the IUCN as an endangered species.
A few sightings or recordings of its presence, with varying degrees of certainty, have occurred in the Pilbara region of Western Australia, south-western Queensland, the Lake Eyre basin in South Australia and the Northern Territory. However, some of the evidence produced by wildlife photographer John Young has been called into question, and in March 2019 the Australian Wildlife Conservancy (AWC) retracted some of the records created by Young and published by the AWC.
A relatively small and short-tailed parrot, the species' colour is predominantly a yellowish green, mottled with dark brown, blacks and yellows. Both sexes have this coloration. It is distinguished from the two superficially similar ground parrot species by its shorter tail and different range and habitat. Predominantly terrestrial, taking to the air only when panicked or in search of water, the night parrot has furtive, nocturnal habits and—even when it was abundant—was apparently a highly secretive species. Its natural habitat appears to be the spinifex grass which still dominates much of the dry, dusty Australian interior; other early reports also indicate that it never strayed far from water. It may also inhabit chenopod shrublands, eucalyptus woodlands, and mallee shrublands. One of the vocalisations of the night parrot has been described as a croak and identified as a contact call. Other calls, mostly short "ding-ding" whistles, and a more drawn out whistle, have been recorded from Queensland and Western Australia.
Historic sources indicate that the night parrot eats seeds of grasses (especially Triodia ) and herbs.
The population size of this species is not known, but assumed to be continuing to decline. As of August 2020, it is listed on the IUCN Red List as Endangered, having previously been listed as Critically Endangered. According to the IUCN Red List the night parrot has a population of 50–249, or possibly larger. It is listed as Endangered under the Environment Protection and Biodiversity Conservation Act 1999 by the Australian government.
