- The Andean Condor (Vultur gryphus), which lives over the Andes.
- The California Condor (Gymnogyps californianus), now found only on the western coastal mountains of the United States and Mexico.
|An Andean Condor soars over southern Peru's Colca Canyon.|
Condors are part of the family Cathartidae, whereas the 15 species of Old World vultures are in the family Accipitridae, that also includes falcons, hawks, and eagles. The New World and Old World vultures evolved from different ancestors.
The Andean Condor has a wingspan of between 274 and 310 cm, and weights around 11–15 kg. The California Condor is smaller.
Fossils from the Pleistocene era have been found in various parts of North America, including New York and Florida. California Condors or their ancestors once lived on the west coast of North America as well as all the way to the eastern coast. An ancient relative of the condor, Argentavis magnificens from South America, may have been the largest flying bird ever with a wingspan of 7 metres (23 ft).
- Campbel K.E. & Tonni E.P. 1983. Size and locomotion in teratorns (Aves: Teratornithidae). Auk 100(2): 390-403
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