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The sooty barbthroat (''Threnetes niger'') is a hummingbird species in the family Trochilidae. It is found in French Guiana and far north-eastern Brazil. Its natural habitat is humid tropical lowland forest. The taxonomy and systematics of the sooty/pale-tailed barbthroat complex has caused much confusion. Some authors〔E.g. Hinkelmann (1999)〕 consider the sooty barbthroat to be a melanistic variant of the pale-tailed barbthroat (''T. leucurus''). As ''T. niger'' was described first, this scientific name is the valid name for both when they are considered conspecific. On the other hand, the SACC for example considers ''T. niger'' and ''T. leucurus'' distinct species, because of insufficient published evidence for their being conspecific.〔SACC (2003)〕 This "combined" species is considered to be of Least Concern by the IUCN.〔〔BLI (2008)〕 In addition, some suggest that the bronze-tailed barbthroat (''T. n. loehkeni'') should also be considered a valid species and include the doubtful Christina's barbthroat (''T. n. christinae'') as a subspecies. Freire's sooty barbthroat (''T. n. freirei'') is intermediate between the sooty and bronze-tailed barbthroats however, and thus its status needs to be clarified before the situation is resolved.〔Mallet-Rodrigues (2006)〕 ==Footnotes== 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「Sooty barbthroat」の詳細全文を読む スポンサード リンク
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