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Side-by-Side Comparison

属性	White-bellied Hummingbird	Sword-billed Hummingbird
学名	Elliotomyia chionogaster	Ensifera ensifera
目	Caprimulgiformes	Caprimulgiformes
科	Trochilidae	Trochilidae
保护状况	Least Concern	Least Concern
体长	—	—
翼展	—	15.3 cm (6.0 in)
体重	5.525 g (0.19 oz)	12.75 g (0.45 oz)
食性	Hovering nectarivore of lowland and montane forest, probing Heliconia and garden flowers. Supplements with insects …	Nectarivore uniquely adapted to extremely long flowers of Passiflora and Datura. Supplements with small insects …
产卵数	2	--
Population Trend	—	—

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Habitat Comparison

共同栖息地

🌲 Forest

White-bellied Hummingbird only

无

Sword-billed Hummingbird only

🌾 Grassland

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Song & Call Comparison

White-bellied Hummingbird

鸣唱

Melodic, rolling phrase with rich bubbly timbre; warm notes tumbling loosely in pleasant continuous sequence.

Sword-billed Hummingbird

鸣唱

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

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Geographic Range & Migration

White-bellied Hummingbird

Found in Andean highlands from Peru to Argentina at 2,000-4,000 m. Resident in montane scrub and Polylepis woodland.

Sword-billed Hummingbird

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

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保护状况

Least Concern

White-bellied Hummingbird

Least Concern

Sword-billed Hummingbird

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How to Tell Them Apart

White-bellied Hummingbird

羽毛

Spot-winged Coucal: dark brown above with spotted wings; rufous wings; pale below; long dark tail; red eye; spotted wings distinctive

Sword-billed Hummingbird

羽毛

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

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About These Birds

White-bellied Hummingbird

小型蜂鸟（体长9-10厘米），栖息于秘鲁至阿根廷的安第斯高地。绿色羽毛，腹部白色。

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。

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