Teratorn
Teratornis merriami. This is by far the best-known species. Over a hundred specimens have been found, mostly from La Brea tar pits. It stood about 75 cm (29.5 in) tall with estimated wingspan of perhaps 3.5 to 3.8 metres (11.5 to 12.5 ft), and weighed about 15 kg (33 lb); making it about a third bigger than living condors. It became extinct at the end of the Pleistocene, some 10,000 years ago.