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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 ...
The wildlife refuge was established to protect the breeding habitat for the endangered California least tern and the threatened Western snowy plover.The refuge also provides Coastal sage scrub habitat for other endangered species, including the California tiger salamander (recently listed for protection under the Endangered Species Act), California red-legged frog, Morro blue butterfly, IUCN ...
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 ...
Off-leash dogs are putting at risk the survival of the endangered California least tern and threatened western snowy plover at their habitat at the Santa Ana River mouth, experts say.
Loss of habitat. In 1989, there was a big trapping of hundreds of foxes at Seal Beach National Wildlife Refuge. The red foxes were killed because they put a significant threat to two endangered species of birds, light-footed clapper rail and the California least tern. Even though an animal rights group had requested an injunction to prohibit ...
Tijuana Slough provides critical habitat for the federally listed endangered California least tern (Sterna antillarum browni), light-footed rail (Rallus obsoletus levipes) and least Bell's vireo (Vireo bellii pusillus), as well as the salt marsh bird's-beak (Cordylanthus maritimus maritimus), an endangered plant species.
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The first known inhabitants of the Guadalupe-Nipomo Dunes were Native Americans of the Chumash tribe; early Spanish maritime explorers noted their settlements. However, Europeans did not travel through the Dunes themselves until September 2–4, 1769, [5] when members of Don Gaspar de Portolà's overland expedition stayed in the Dunes and shot a skinny bear by the shores of what is now called ...