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''Pionus'' is a genus of medium-sized parrots native to Mexico, and Central and South America. Characteristic of the genus are the chunky body, bare eye ring (which can vary in color), and short square tail. They are superficially similar to Amazon parrots, but smaller and in flight their wing-strokes are far deeper. Coloration is generally subdued yet complex; under bright lighting, their feathers shimmer with iridescent brilliance. All species share bright red undertail coverts; the scientific name of one species, the blue-headed parrot (''P. menstruus''), refers to this. Males and females are similar, with no notable sexual dimorphism. ==Taxonomy== The speckle-faced parrot is often split into two species, while a small number of authorities have suggested the blue-headed parrot should be split into two or three species. * Blue-headed parrot (or blue-headed pionus), ''Pionus menstruus'' * * Paler blue-headed parrot (or paler blue-headed pionus), ''Pionus (menstruus) rubrigularis'' * * Reichenow's blue-headed parrot (or Reichenow's blue-headed pionus), ''Pionus (menstruus) reichenowi'' * Red-billed parrot (or red-billed pionus, coral-billed parrot, coral-billed pionus), ''Pionus sordidus'' * Scaly-headed parrot (or scaly-headed pionus, Maximilian's pionus, Maximilian's parrot), ''Pionus maximiliani'' * White-crowned parrot (or white-crowned pionus), ''Pionus senilis'' * Speckle-faced parrot (or speckle-faced pionus), ''Pionus tumultuosus'' * * Plum-crowned parrot (or plum-crowned pionus), ''Pionus (tumultuosus) tumultuosus'' * White-capped parrot (or white-headed pionus), ''Pionus seniloides'' * Bronze-winged parrot (or bronze-winged pionus), ''Pionus chalcopterus'' * Dusky parrot (or dusky pionus), ''Pionus fuscus'' 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「Pionus」の詳細全文を読む スポンサード リンク
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