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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 ...
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 ...
Least Bittern at Field Guide: Birds of the World on Flickr; Least Bittern Species Account – Cornell Lab of Ornithology; Cory's least bittern and Cory's least bittern at Pantanal, YouTube videos; Cory's least bittern in Royal Ontario Museum, Toronto, photographs of museum specimens "Least Bittern media". Internet Bird Collection. Least Bittern ...
Genus Sternula – F. Boie, 1822 – seven species Common name Scientific name and subspecies Range Size and ecology IUCN status and estimated population Little tern. Sternula albifrons (Pallas, 1764) temperate and tropical Europe and Asia. Size: Habitat: Diet: LC Least tern. Sternula antillarum Lesson, 1847
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 ...
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.
The call is a loud grating noise like Sandwich tern. The grey rump is a useful flight identification feature distinguishing it from the related species. The Elegant tern also differs in a slightly longer, slenderer bill, while Chinese crested tern differs in a black tip to the bill and Sandwich tern a black bill with a yellow tip.