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The mountain trogon (''Trogon mexicanus''), also known as the Mexican trogon, is a species of bird in the family Trogonidae. First described by William John Swainson in 1827, it is resident in Guatemala, Honduras, and Mexico and has occurred in El Salvador as a vagrant. Like all trogons, the mountain trogon is sexually dimorphic. The male is metallic green on the crown, nape, upperparts and chest, the latter separated from its bright red belly and vent by a narrow band of white. The female is warm brown on the head, upperparts and chest, separated from its paler brown lower chest and red belly and vent by a narrow white band. Its natural habitat is subtropical and tropical moist montane forests. It prefers pine-evergreen and pine-oak woodland between in elevation. Unlike some rarer trogons, this species shows some adapability to human land use and has utilized coffee plantations with suitable shade trees like oaks.〔 ==Taxonomy== When he first described the mountain trogon in 1827 from a specimen collected in Temascáltepec, Mexico, William John Swainson gave the species its current scientific name.〔 Most ornithologists have agreed with this assignment, though Charles Lucien Bonaparte assigned it to the genus ''Trogonurus'', and several other ornithologists described it again later under other names.〔 It has three subspecies:〔 *''T. m. clarus'' was described by Ludlow Griscom in 1932.〔 *''T. m. lutescens'' was also described by Griscom in 1932.〔 *''T. m. mexicanus'' was described by Swainson in 1827.〔 DNA studies have shown that the mountain trogon is part of the "Elegant" sub-clade of the genus ''Trogon''—along with the elegant trogon, the collared trogon, the black-throated trogon and the masked trogon—but have not revealed which species are its closest relatives.〔 The genus name ''Trogon'' is a Greek word meaning "grawing" or "nibbling".〔 This may be a reference to the way trogons gnaw into rotting trees to make their nest holes.〔 The species name ''mexicanus'' means "Mexico", a reference to where the first specimen was collected.〔 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「mountain trogon」の詳細全文を読む スポンサード リンク
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