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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 ...
Presence of the endangered interior least tern near the path of the Creek Turnpike caused worries its construction would have to be delayed. Initial turnpike plans included environmental mitigation features to reduce the amount of disruption the finished road would cause to the local environment.
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 ...
As heavy equipment turns ground for a planned high-rise hotel and condominium project, the threatened least tern is roosting at the construction site.
Hundreds of great blue herons and double-crested cormorants nest in the flooded timber, and interior least terns nest when the water is lower. Populations of greater prairie chickens and black-tailed prairie dogs occur on the refuge.
Among the birds found at the refuge are great blue herons and the three endangered bird species: California clapper rail, California least tern, and Belding's Savannah sparrow. [3] [4] The refuge is located within Naval Weapons Station Seal Beach. Public access in the refuge is limited or restricted to once-a month tour (last Saturday of each ...
The endangered whooping crane and interior least tern as well as the threatened piping plover are the endangered and threatened bird species that have been recorded in the district. Northern pintail Red-tailed hawk , Swainson's hawk , northern harrier , American kestrel , great horned owl as well as less frequent sightings of bald and golden ...
Interior least tern (Sterna antillarum athalassos) Lewis' woodpecker (Melanerpes lewis) Described: American crow (Corvus brachyrhynchos) American goldfinch (Carduelis tristis) American kestrel (Falco sparverius) American robin (Turdus migratorius) American white pelican (Pelecanus erythrorhynchos) Bald eagle (Haliaeetus leucocephalus) Bank ...