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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 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 ...
Most species are pale grey above and white below with a contrasting black cap to the head, but the marsh terns, the black-bellied tern, the Inca tern, and some noddies have dark body plumage for at least part of the year. The sexes are identical in appearance, but young birds are readily distinguishable from adults.
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
As heavy equipment turns ground for a planned high-rise hotel and condominium project, the threatened least tern is roosting at the construction site. Skip to main content. Sign in. Mail. 24/7 ...
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 animal sightings? The most endangered animal species in each state, from sea turtles to dragonflies. All about the roseate tern. According to All About Birds, managed by the Cornell Lab ...
Juvenile lesser crested terns resemble same-age Sandwich terns, but with a yellow-orange bill, and paler overall, with only faint dark crescents on the mantle feathers. There are two other orange-billed terns within the range of this species, royal tern and Greater crested tern. Both are much larger and stouter-billed; royal also has a white ...