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''Caracara'' is a genus of birds of prey in the family Falconidae found throughout a large part of the Americas. They are part of a group collectively referred to as caracaras. The modern species in the genus ''Caracara'' were previously considered conspecific (as "crested caracara", a name still widely used for the northern caracara)〔(AOU Check-list of North American Birds. ) 7th edition w. supplements. Accessed 2008-04-26〕〔(ABA Check-list (PDF). ) Version 6.8. Accessed 2008-04-26〕〔Clements, J. F. 2007. The Clements Checklist of the Birds of the World. 6th edition. Christopher Helm. ISBN 978-0-7136-8695-1〕 and were originally placed within the genus ''Polyborus''. ==Taxonomy== Two of the modern species are extinct, one was deliberately made extinct by humans about 100 years ago (to the detriment of its island home). Several prehistoric taxa are also known. * Northern caracara (''Caracara cheriway'') * Southern caracara (''Caracara plancus'')〔 * †Guadalupe caracara (''Caracara lutosa'')〔 – extinct (1900 or 1903) * †Bahaman caracara (''Caracara creightoni'') – prehistoric, may belong in ''C. latebrosus'' * †Puerto Rican caracara (''Caracara latebrosus'') – prehistoric * †Terrestrial caracara (''Caracara tellustris'') – prehistoric The fossil record proves the long history of the mainland "crested caracaras". Remains of northern caracaras, slightly larger than those of modern times but otherwise identical, were found in the famous La Brea Tar Pits.〔 In addition, the Guadalupe caracara may derive from an already-distinct population of western Mexico that subsequently was displaced by the main continental population. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Caracara (genus)」の詳細全文を読む スポンサード リンク
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