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Side-by-Side Comparison

属性	Sword-billed Hummingbird	Buff-thighed Puffleg
学名	Ensifera ensifera	Haplophaedia assimilis
目	Caprimulgiformes	Caprimulgiformes
科	Trochilidae	Trochilidae
保护状况	Least Concern	Least Concern
体长	—	—
翼展	15.3 cm (6.0 in)	11.4 cm (4.5 in)
体重	12.75 g (0.45 oz)	5.05 g (0.18 oz)
食性	Nectarivore uniquely adapted to extremely long flowers of Passiflora and Datura. Supplements with small insects …	Nectarivore of Peruvian montane forest; forages at Ericaceae and bromeliads. Supplements diet with small arthropods.
产卵数	--	2
Population Trend	—	—

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Habitat Comparison

共同栖息地

🌲 Forest

Sword-billed Hummingbird only

🌾 Grassland

Buff-thighed Puffleg only

无

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Song & Call Comparison

Sword-billed Hummingbird

鸣唱

Thin, reedy whistle with plaintive character; soft nasal tone held briefly then gently fading in mist.

Buff-thighed Puffleg

鸣唱

Melodic, two-note descending call; pure warm tones stepping down smoothly, given at regular intervals from perch.

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Geographic Range & Migration

Sword-billed Hummingbird

Found in Andean cloud forests from Venezuela south through Colombia, Ecuador, Peru, and Bolivia. 1,700–3,500 m.

Buff-thighed Puffleg

Found on the eastern Andean slope in Peru in lower montane and foothill forest. 600–2,200 m elevation.

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保护状况

Least Concern

Sword-billed Hummingbird

Least Concern

Buff-thighed Puffleg

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How to Tell Them Apart

Sword-billed Hummingbird

羽毛

Olivaceous Thornbill: males with iridescent purple gorget; metallic olive-bronze above; white underparts; females green above; spots

Buff-thighed Puffleg

羽毛

Brown Violetear: males with glittering violet gorget; metallic bronze-green above; violet ear tufts; females green with spotted below

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About These Birds

Sword-billed Hummingbird

剑嘴蜂鸟。嘴与身体等长（8-10厘米）。栖息于安第斯云雾林。专门取食深处的西番莲花蜜。

Buff-thighed Puffleg

杜邦腿羽蜂鸟分布于秘鲁和玻利维亚安第斯山脉东坡的云雾林。体型小，羽色绿色，腿具白色羽毛，具长而直的喙。以花蜜为食，也取食昆虫补充蛋白质。生活在高海拔的云雾林地带，具有领域性。

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