As of 2020, there are five species of birds that are considered extinct in the wild by the International Union for Conservation of Nature.
Socorro Island is a small volcanic island in the Revillagigedo Islands, a Mexican possession lying 600 kilometres (370 mi) off the country's western coast. The size is 16.5 by 11.5 km, with an area of 132 km2 (51 sq mi). It is the largest of the four islands of the Revillagigedo Archipelago. The last eruption was in 1993.
The green parakeet is a medium-sized parrot occurring in North and Central America, from the southernmost tip of Texas south to northern Nicaragua.
The Alagoas curassow is a glossy-black, pheasant-like bird. It was formerly found in forests in Northeastern Brazil in what is now the states of Pernambuco and Alagoas, which is the origin of its common name. It is now extinct in the wild; there are about 130 individuals in captivity.
The Alagoas foliage-gleaner is an extinct passerine bird which was endemic to Brazil.
A species that is extinct in the wild (EW) is one that has been categorized by the International Union for Conservation of Nature as known only by living members kept in captivity or as a naturalized population outside its historic range due to massive habitat loss.
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 razor-billed curassow is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in Bolivia, Brazil, Colombia, and Peru.
The red-browed amazon is a species of parrot in the family Psittacidae. It is endemic to Atlantic Forest in eastern Brazil. It has been considered a subspecies of the blue-cheeked amazon, but today all major authorities consider them separate species. It is threatened both by habitat loss and by being captured for the trade in wild parrots.
The Guam flycatcher, or Guam broadbill, is an extinct species of bird in the family Monarchidae formerly endemic to Guam.
The oceanic flycatcher is a species of bird in the family Monarchidae. It is endemic to Micronesia and can be found on the Caroline Islands. The diversity of traits in the Oceanic flycatchers resulted from three waves of colonization in non-overlapping times, which led to situ specification events on Micronesian islands.
The Alagoas tyrannulet is a species of bird in the family Tyrannidae. It is endemic to the Atlantic Forest in eastern Brazil. Its natural habitat is subtropical or tropical moist lowland forest. It is threatened by habitat loss.
Pinto's spinetail is a species of bird in the family Furnariidae. It is also known as the plain spinetail, Alagoas spinetail or tatac. It is endemic to north-eastern Brazil. Its natural habitats are subtropical or tropical moist lowland forest, subtropical or tropical moist shrubland, and plantations. It is threatened by habitat loss.
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.
Sideroxylon socorrense is a plant species in the family Sapotaceae. It is endemic to Mexico, occurring only on Socorro in the Revillagigedo Islands.
The cryptic treehunter is an extinct species of bird in the family Furnariidae. It was endemic to Brazil.