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California Condor - BirdForum Opus

Revision as of 20:11, 28 June 2014 by Njlarsen (talk | contribs) (update link)
Juveniles
Photo by Doug Greenberg
Grand Canyon National Park, Arizona, USA, August 2003
Gymnogyps californianus

Identification

  • Black plumage
  • White patches on underwings
  • Bald head (skin colour ranging from yellowish to bright red)
  • Black frill around base of neck
  • Brown-red iris
  • Grey legs and feet
  • Ivory bill

Juvenile

  • Mottled dark brown
  • Blackish head
  • Mottled grey on underside of flight feathers

Distribution

North America: confined to the foothills of the Coast Range and Sierra Nevada of California.
Once probably widespread in the western USA. In 1987 the last wild bird was captured to join the 26 other surviving specimens in captivity in an attempt to save the species.

Birds are now being released into the wild once again and are found in California, Utah, Arizona, and Baja California. In all locations, lead poisoning from ammunition fragments in carcases is a serious problem, and another serious problem is trash showing up in nests and being ingested by the chicks -- long term success of the recovery program is therefore not a given.

Taxonomy

This is a monotypic species[1].

Subspecies amplus is extinct and known only from fossils[2].

Habitat

Gorges and rocky canyons in chaparral and pine-covered, dry mountains.

Behaviour

Diet

The diet includes carrion; it is a scavenger.

Breeding

They nest in caves or on cliffs. A single blue-white egg is incubated by both parents for 53-60 days.

References

  1. Clements, JF. 2011. The Clements Checklist of Birds of the World. 6th ed., with updates to August 2011. Ithaca: Cornell Univ. Press. ISBN 978-0801445019. Spreadsheet available at http://www.birds.cornell.edu/clementschecklist/downloadable-clements-checklist
  2. Avibase
  3. Paper describing the status of the condor recovery program
  4. Wikipedia

Recommended Citation

External Links


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