Threatened species are any species which are vulnerable to endangerment in the near future. Species that are threatened are sometimes characterised by the population dynamics measure of critical depensation, a mathematical measure of biomass related to population growth rate. This quantitative metric is one method of evaluating the degree of endangerment.
The Taliabu masked owl, also known as the Taliabu owl or the Sula Islands barn owl, is an owl in the barn owl family, Tytonidae. This is one of the two groups of owls, the other being the typical owls, family Strigidae. It is endemic to Taliabu Island of Indonesia.
The slaty-breasted rail is a rail species native to the Indian Subcontinent and Southeast Asia. Breeding has been recorded in July near Dehradun in the foothills of the Indian Himalayas. Despite traditionally being considered part of Gallirallus, recent genetic studies have consistently placed it in the genus Lewinia, which is now formally recognised by the IUCN and IOC.
The desert sparrow is a species of bird in the sparrow family Passeridae, found in the Sahara Desert of northern Africa. A similar bird, Zarudny's sparrow, is found in Central Asia and was historically recognised as a subspecies of the desert sparrow, but varies in a number of ways and is now recognised as a separate species by BirdLife International, the IOC World Bird List, and the Handbook of the Birds of the World Alive.
The Manipur bush quail is a species of quail found in northeastern India and Bangladesh inhabiting damp grassland, particularly stands of tall grass. It was first collected and described by Allan Octavian Hume on an ornithological expedition to Manipur in 1881.
The Sumatran ground cuckoo is a large, terrestrial species of cuckoo. It was introduced to Western science in 1879 and was formerly considered conspecific with the Bornean ground cuckoo but was given status as a unique species in 2000. This elusive species was initially known from just eight specimens and evaded notice from 1916 until 1997, when it was rediscovered and photographed by Andjar Rafiastanto. The Sumatran ground cuckoo's diet is thought to consist of invertebrates, small mammals, and reptiles.
The obscure berrypecker is a small passerine bird from the berrypecker family Melanocharitidae. It was described by the German ornithologist Friedrich Finsch based on a specimen collected on the island of New Guinea ; collected in 1867 in the Arfak Mountains. Another specimen was collected in 1933 in the mountains northwest of Port Moresby in Papua New Guinea, these two specimens are the only confirmed records of the species. Unconfirmed sight records have been made in regions of New Guinea; these suggest that the species is not rare, and is a resident of disturbed forest, able to cope with human modification of its habitat. All these sightings were all made in the mountains, which is consistent with the range of the rest of the berrypeckers, only the black berrypecker has a lowland range.
This article is a list of biological species, subspecies, and evolutionary significant units that are known to have become extinct during the Holocene, the current geologic epoch, ordered by their known or approximate date of disappearance from oldest to most recent.
The Oʻahu ʻalauahio, also known as the Oʻahu creeper, is a small finch-like Hawaiian honeycreeper that is endemic to the Hawaiian island of Oahu. It is probably extinct.
The black-browed reed warbler is a marsh-warbler in the family Acrocephalidae. It was formerly included in the "Old World warbler" assemblage. The species was first described by Robert Swinhoe in 1860.
The speckled reed warbler or streaked reed warbler is an Old World warbler in the family Acrocephalidae. The species was first described by Robert Swinhoe in 1863.
The Auckland rail is a small nearly flightless rail endemic to the Auckland Islands 460 km south of New Zealand. It is somewhat of a biogeographical anomaly, being the only species in the genus Lewinia to have reached the islands of New Zealand, skipping over the main islands to reach the remote Auckland group. Its closest relative is Lewin's rail of Australia. The species is currently restricted to two islands in the Auckland group, Adams Island and Disappointment Island.
Archer's lark, also known as the Liben lark, is a species of lark in the family Alaudidae. It is found in Somalia, Somaliland and Ethiopia. Its natural habitats are subtropical or tropical dry shrubland and subtropical or tropical dry lowland grassland. It is threatened by habitat loss. The bird's common name and binomial commemorate the British explorer and colonial official Sir Geoffrey Francis Archer.
The blue-wattled bulbul is a species of songbird in the bulbul family of passerine birds. The specific epithet commemorates Dutch explorer Anton Willem Nieuwenhuis. The bird is endemic to the islands of Borneo and Sumatra. Its natural habitat is subtropical or tropical moist lowland forests.
Lewin's rail is a species of bird in the family Rallidae. It is found in Australia, Wallacea, and New Guinea. Lewin's rail is also known as the water rail, Lewin's water rail, Lewin's grind rail, slate-breasted rail, slate-breasted water rail, pectoral rail, pectoral water rail, short-toed rail and short-toed water rail. Its natural habitat is subtropical or tropical moist lowland forests.
The ashy-breasted flycatcher is a species of bird in the family Muscicapidae. It is endemic to the Philippines found only on the islands of Negros and Luzon. Its natural habitat is tropical moist lowland forests. It is threatened by habitat loss.
The Luzon water redstart, also known as the Luzon redstart, is a species of bird in the family Muscicapidae. It is endemic to the Philippines found primarily on Luzon with no records in Mindoro since 1965. Its natural habitats are tropical moist lowland forest, subtropical or tropical moist montane forest, and rivers. It is threatened by habitat loss.
The ashy thrush, also known as the ashy ground-thrush, is a species of bird in the family Turdidae. It is endemic to the Philippines in Luzon and Mindoro. Its natural habitats are tropical moist lowland forests and or tropical moist montane forests. It is threatened by habitat loss, and the illegal wildlife trade.
The bridled white-eye was a species of bird in the family Zosteropidae. It was endemic to the island of Guam in the Mariana Islands. The species' natural habitat was subtropical or tropical moist lowland forests. One traditionally recognized subspecies is endemic to the Northern Mariana Islands, on the islands of Tinian, Saipan and Aguijan.
Zarudny's sparrow, also known as the Asian desert sparrow, is a species of bird in the sparrow family Passeridae, which occurs in Uzbekistan, Turkmenistan, and formerly in Iran. This species has historically been classified as a subspecies of the desert sparrow, which is otherwise restricted to Africa. However, the species has a number of differences with the African species, including very similar plumage in adult males and females, which suggests this species is distinct enough to be considered separate, and possibly not most closely related to the African birds. Consequently, Zarudny's sparrow is treated as a separate species by BirdLife International, the IOC World Bird List, and the Handbook of the Birds of the World Alive.
