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・ Buff-fronted foliage-gleaner
・ Buff-fronted owl
・ Buff-fronted quail-dove
・ Buff-headed coucal
・ Buff-necked ibis
・ Buff-necked woodpecker
・ Buff-rumped thornbill
・ Buff-rumped warbler
・ Buff-rumped woodpecker
・ Buff-sided robin
・ Buff-spotted flameback
・ Buff-spotted flufftail
・ Buff-spotted woodpecker
・ Buff-streaked chat
・ Buff-tailed coronet
Buff-tailed sicklebill
・ Buff-thighed puffleg
・ Buff-throated apalis
・ Buff-throated foliage-gleaner
・ Buff-throated purpletuft
・ Buff-throated saltator
・ Buff-throated sunbird
・ Buff-throated tody-tyrant
・ Buff-throated warbler
・ Buff-throated warbling finch
・ Buff-throated woodcreeper
・ Buff-tip
・ Buff-vented bulbul
・ Buff-winged cinclodes
・ Buff-winged starfrontlet


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Buff-tailed sicklebill : ウィキペディア英語版
Buff-tailed sicklebill
:Epimachus albertisi'', a bird-of-paradise from New Guinea, is also sometimes called "buff-tailed sicklebill".''
The buff-tailed sicklebill (''Eutoxeres condamini'') is a species of hermit hummingbird from the lower Andes and adjacent west Amazonian lowlands from southern Colombia and northern Ecuador to Peru and Bolivia.〔Hinkelmann (1999)〕
==Description==
With a total length of 5-6 in (13–15 cm) and weighing 0.28-0.44 oz (8-12.5 g), it is a relatively large hummingbird. Males and females are virtually identical, differing only in size (especially wing measurements), with the females being some 20% smaller.〔
Its upperparts are iridescent dull greenish, while the underparts are whitish, densely streaked with dusky. The neck-side has a relatively faint blue patch. The tips of the rectrices (tail feathers) are white, and there is a naked stripe on top of the head (but this is usually concealed). The most conspicuous features, however, are those the common name refers to: the bill is strongly decurved, and the outer three rectrices on each side are deep buff, best visible from below.〔
Immature birds have light-tipped remiges (pinions), hardly any blue on the neck, and lack the naked crown stripe. Hatchlings have black skin and grey down.〔
There are two subspecies which are not very distinct and almost form a continuous cline, with an extensive intergradation zone in northern Peru:〔
* ''Eutoxeres condamini condamini'' (Bourcier, 1851) – northern buff-tailed sicklebill
:Colombia and Ecuador. Bill longer, lower belly much streaked
* ''Eutoxeres condamini gracilis'' Berlepsch & Stolzmann, 1902 – southern buff-tailed sicklebill
:Central Peru to Bolivia. Bill shorter, lower belly less streaked
The buff outer remiges are the most reliable trait for separating the buff-tailed sicklebill from the only other member of the genus ''Eutoxeres'', the white-tipped sicklebill (''E. aquila''), which has a more northerly distribution. The ''Eutoxeres'' species are somewhat sympatric however, for example in the foothills of Putumayo around Mocoa, Colombia.〔Hinkelmann (1999), Salaman ''et al.'' (2002)〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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