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The California condor (Gymnogyps californianus) is a New World vulture and the largest North American land bird. It became extinct in the wild in 1987 when all remaining wild individuals were captured, but has since been reintroduced to northern Arizona and southern Utah (including the Grand Canyon area and Zion National Park), the coastal mountains of California, and northern Baja California ...
An editorial board was established in 1951 to address increasing submissions to the journal. James R. King, editor-in-chief following 1965, instituted an external peer review system. Moreover, King broadened the journal's geographic scope. By 1966, at least 40% of papers published in The Condor were written by scientists outside the United ...
Gymnogyps amplus was first described by L. H. Miller in 1911 from a broken tarsometatarsus. [1] [2] The species is the only condor species found in the La Brea Tar Pits' Pit 10, which fossils date to "a Holocene radiocarbon age of 9,000 years."
The California condor is critically endangered. It formerly ranged from Baja California to British Columbia, but by 1937 was restricted to California. [52] In 1987, all surviving birds were removed from the wild into a captive breeding program to ensure the species' survival. [52] In 2005, there were 127 Californian condors in the wild.
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Order: Charadriiformes Family: Stercorariidae. Skuas are in general medium to large birds, typically with gray or brown plumage, often with white markings on the wings. They have longish bills with hooked tips and webbed feet with sharp claws. They look like large dark gulls, but have a fleshy cere above the upper mandible. They are strong ...
Colpocephalum californici, the California condor louse, [1] is an extinct species of chewing louse which parasitized the California condor (Gymnogyps californianus).In an example of coextinction, it became extinct when the remaining, Critically Endangered California condors were deloused and treated with pesticides during a captive breeding program.
Accipitriformes, currently with 262 species and 75 genera in 4 extant families and possibly 1 extinct family, is the largest diurnal raptor order. DNA sequence analyses suggest that divergences within Accipitriformes began around the Eocene/Oligocene boundary about 34 mya, with the split of the group including genera Elanus and Gampsonyx from ...