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The amazon parrots are about 30 species of parrots that comprise the genus ''Amazona''. They are native to the New World, ranging from South America to Mexico and the Caribbean. Amazon parrots range in size from medium to large, and have relatively short, rather square tails. They are predominantly green, with accenting colours that are quite vivid in some species. The taxonomy of the yellow-crowned amazon (''Amazona ochrocephala'' complex) is disputed, with some authorities listing only a single species (''A. ochrocephala''), and others splitting it into as many as three species (''A. ochrocephala'', ''A. auropalliata'' and ''A. oratrix'').〔Binford, L. (1989). "A distributional survey of the birds of the Mexican state of Oaxaca." ''Ornithological Monographs''. 43: 1–418.〕〔Monroe, B, Monroe, JR & Howell T. (1966). "Geographic variation in Middle American parrots of the ''Amazona ochrocephala'' complex". ''Occasional Papers of the Museum of Zoology, no. 34.'' Louisiana State University, Baton Rouge.〕〔For further on this issue, see the yellow-crowned amazon taxonomic section〕 The yellow-faced parrot, ''Alipiopsitta xanthops'', was traditionally placed within the amazon parrot genus, but recent research has shown that it is more closely related to the short-tailed parrot and species from the genus ''Pionus''; as a result, it has been transferred to the monotypic genus ''Alipiopsitta''.〔Duarte JMB and Caparroz R (1995) "Cytotaxonomic analysis of Brazilian species of the genus ''Amazona'' (Psittacidae, Aves) and confirmation of the genus ''Salvatoria'' (Ribeiro, 1920)." ''Brazilian Journal of Genetics'' 18:623–628.〕〔Russello, M A & Amato, G (2004) "A molecular phylogeny of ''Amazona'': implications for Neotropical parrot biogeography, taxonomy, and conservation." ''Molecular Phylogenetics and Evolution''. 30: 421–437.〕 Two extinct species have been postulated, based on limited evidence.〔(【引用サイトリンク】Zoological Nomenclature Resource: Psittaciformes (Version 9.022) )〕 They are the Martinique amazon (''Amazona martinica'')〔BirdLife International 2008. . (2008 IUCN Red List of Threatened Species. )〕〔(【引用サイトリンク】url = http://www.birdlife.org/datazone/species/index.html?action=SpcHTMDetails.asp&sid=30083&m=0 )〕 and the Guadeloupe amazon (''Amazona violacea'').〔〔BirdLife International 2008. . (2008 IUCN Red List of Threatened Species. )〕〔(【引用サイトリンク】url = http://www.birdlife.org/datazone/species/index.html?action=SpcHTMDetails.asp&sid=30082&m=0 )〕 Amazon parrots were described living on Guadeloupe by Jean-Baptiste Du Tertre in 1667 and by Jean-Baptiste Labat in 1742, and they were called ''Psittacus violaceus'' at that time. Labat also described amazon parrots living on Martinique. There are no specimens or remains of either island population, so their taxonomy may never be fully elucidated. Their status as separate species is unproven and they are regarded as hypothetical extinct species.〔 __NOTOC__ ==See also== *List of parrots *Neotropical parrots *List of macaws *List of ''Ramphastos'' species and subspecies 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「List of amazon parrots」の詳細全文を読む スポンサード リンク
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