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The black-throated mango (''Anthracothorax nigricollis'') is a mainly South American hummingbird species. ==Description== It is 10.2 cm long and weighs 7.2g. The longish black bill is slightly decurved. The tail in both sexes has dark central feathers, the outer tail being wine-red tipped with black. The male has glossy bright green upperparts. His throat and chest are matt black, bordered with blue-green. The flanks are bright green, and the black of the chest tapers onto the belly. The female black-throated mango has bronze-green upperparts and white underparts with a black central stripe. Immature birds show some grey or buff feather tips on the head and wings, and have brown around the eyes. The call of the black-throated mango is a high-pitched ''tsiuck'', and the song is a buzzing ''hsl-hsl-hsl-hsl-hsl-hsl-hsl''. This species is very similar to the closely related green-breasted mango. Although the male black-throated mango has more extensive black on the underparts, this and other plumage differences are not always easy to confirm in the field because the birds appear all-black. The females of the two species can be almost inseparable, although the black-throated lacks the more extensively coppery upperpart of its relative. 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「Black-throated mango」の詳細全文を読む スポンサード リンク
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