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The family's taxonomy is unsettled; the Clements taxonomy lists 235 species [2] and BirdLife International's Handbook of the Birds of the World lists 254 [3]. This list is presented according to the IOC taxonomic sequence and can also be sorted alphabetically by common name and binomial.
For a species to be considered endangered by the IUCN it must meet certain quantitative criteria which are designed to classify taxa facing "a very high risk of extinction". An even higher risk is faced by critically endangered species, which meet the quantitative criteria for endangered species. Critically endangered birds are listed ...
According to the International Union for Conservation of Nature (IUCN), 77 bird species in the United States are threatened with extinction. [1] The IUCN has classified each of these species into one of three conservation statuses: vulnerable VU, endangered EN, and critically endangered CR (v. 2013.2, the data is current as of March 5, 2014 [1]).
The largest surviving species is the great slaty woodpecker, which weighs 430 g (15 oz) on average and up to 563 g (19.9 oz), and measures 45 to 55 cm (18 to 22 in), but the extinct imperial woodpecker, at 55 to 61 cm (22 to 24 in), and ivory-billed woodpecker, around 48 to 53 cm (19 to 21 in) and 516 g (18.2 oz), were probably both larger.
Death’s come knocking a last time for the splendid ivory-billed woodpecker and 22 more birds, fish and other species: The U.S. government is declaring them extinct. The ivory-billed woodpecker ...
As of December 2019, the International Union for Conservation of Nature (IUCN) listed 223 critically endangered avian species, including 19 which are tagged as possibly extinct or possibly extinct in the wild. [1] [2] 2% of all evaluated avian species are listed as critically endangered. No subpopulations of birds have been evaluated by the IUCN.
In 2021, the agency seemed ready to declare the so-called Lord God Bird extinct: The US Fish and Wildlife Service announced plans to remove 23 species, including the ivory-billed woodpecker, from ...
The red-cockaded woodpecker is small- to mid-sized species, being intermediate in size between North America's two most widespread woodpeckers (the downy and hairy woodpeckers). This species measures 18–23 cm (7.1–9.1 in) in length, spans 34–41 cm (13–16 in) across the wings and weighs 40–56 g (1.4–2.0 oz).