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10 endangered birds of America

By: Katherine Butler on Sept. 25, 2012, 6:18 p.m.
California condor

Photo: U.S. Fish and Wildlife Service

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California condor

The endangered California condor, or Gymnogyps californianus, was once a prolific bird, which has become an iconic symbol of the American West. However, the largest flying bird in North America has suffered a serious drop in numbers due to hunting and encroachment on its habitat. In 1980, only 25 of the birds remained in the wild. Due to a captive-breeding program, their numbers have increased to around 150 wild birds. However, their numbers remain threatened due to continued habitat destruction, as well as poisoning from lead bullets (left behind in carcasses later scavenged) and pesticides.