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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 ...
Laughing gull Ring-billed gull Least tern. Laridae is a family of medium to large seabirds and includes gulls, terns, kittiwakes, and skimmers. They are typically gray or white, often with black markings on the head or wings. They have stout, longish bills and webbed feet. Black-legged kittiwake, Rissa tridactyla (A) Sabine's gull, Xema sabini (A)
Alongside least terns, piping plovers also have an unusual relationship with mining. Whereas most species predictably suffer habitat loss from mining activities in their area, these birds are known to nest in waste sand piles generated by nearby mines, as the replacement for sand bars. Those sand piles remain topped-up and hostile to vegetation ...
Padre Island, the world's longest undeveloped barrier island, is a nesting ground for the Kemp's ridley sea turtle and a migratory site for least terns, brown pelicans, and piping plovers. Malaquite Beach provides a variety of recreational activities, and Novillo Line Camp has the remains of a cattle ranch.
Which hummingbirds have you seen in Oklahoma so far this spring? Plus, what to know about attracting hummingbirds to your garden.
Many species of terns nest in colonies on the ground. Herons, egrets, storks, and other large waterfowl also nest communally in what are called heronries. Colony nesting may be an evolutionary response to a shortage of safe nesting sites and abundance or unpredictable food sources which are far away from the nest sites. [4]
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This is a list of species of fauna that have been observed in the U.S. state of Oklahoma. This list is incomplete ; you can help by adding missing items . ( February 2011 )