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The western population, the California least tern, was listed as an endangered species in 1972 with a population of about 600 pairs.With aggressive management, mainly by the exclusion of humans via fencing, the Californian population has rebounded in recent years to about 4500 pairs, a marked increase from 582 pairs in 1974 when census work began, though it is still listed as an endangered ...
The avian family Laridae comprise the noddies, skimmers, kittiwakes, gulls, and terns. The International Ornithological Committee (IOC) recognizes these 104 Laridae species distributed among 22 genera. This list is presented according to the IOC taxonomic sequence and can also be sorted alphabetically by common name and binomial. Common name Binomial name IOC sequence African skimmer Rynchops ...
In December 2019, the International Union for Conservation of Nature (IUCN) listed 8460 least concern avian species. [1] Of all evaluated avian species, 76.9% are listed as least concern. No subpopulations of birds have been evaluated by the IUCN. This is a complete list of least concern avian species evaluated by the IUCN.
The California least tern (Sternula antillarum browni) is a subspecies of least tern that breeds primarily in bays of the Pacific Ocean within a very limited range of Southern California, in San Francisco Bay and in northern regions of Mexico. This migratory bird is a U.S. federally listed endangered subspecies. The total population of the ...
Warm-blooded prey includes mice and the eggs and chicks of other beach-breeding birds; least terns, little terns and members of its own species may be victims. [57] [58] [59] The greater crested tern will also occasionally catch unusual vertebrate species such as agamid lizards and green sea turtle hatchlings, and follows trawlers for discards ...
Endangered (EN) species are considered to be facing a very high risk of extinction in the wild. In December 2019, the International Union for Conservation of Nature (IUCN) listed 460 endangered avian species. [1] Of all evaluated avian species, 4% are listed as endangered. No subpopulations of birds have been evaluated by the IUCN.
In this list of birds by common name 11,278 extant and recently extinct (since 1500) bird species are recognised. [1] ... Least storm petrel; Least tern; LeConte's ...
As of December 2020, the International Union for Conservation of Nature (IUCN) lists 1001 near threatened avian species. [1] Of all evaluated avian species, 9.1% are listed as near threatened. No subpopulations of birds have been evaluated by the IUCN. This is a complete list of near threatened avian species evaluated by the IUCN.