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Side-by-Side Comparison

属性	Blue-tailed Emerald	Sword-billed Hummingbird
学名	Chlorostilbon mellisugus	Ensifera ensifera
目	Caprimulgiformes	Caprimulgiformes
科	Trochilidae	Trochilidae
保护状况	Least Concern	Least Concern
体长	—	—
翼展	9.0 cm (3.5 in)	15.3 cm (6.0 in)
体重	2.6466666666666665 g (0.09 oz)	12.75 g (0.45 oz)
食性	Nectarivore visiting diverse flowering plants; supplements the high-sugar nectar diet with small insects and spiders …	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

Blue-tailed Emerald only

无

Sword-billed Hummingbird only

🌾 Grassland

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Song & Call Comparison

Blue-tailed Emerald

鸣唱

Pure, flute-like descending scale; smooth melodic phrase moving cleanly through several notes, warm in timbre.

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

Blue-tailed Emerald

Widely distributed from Colombia and Venezuela through the Guianas to Trinidad and Tobago. Resident in varied lowland habitats.

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

Blue-tailed Emerald

Least Concern

Sword-billed Hummingbird

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How to Tell Them Apart

Blue-tailed Emerald

羽毛

White-throated Hummingbird: males with brilliant green gorget; metallic green above; white throat; females green above; spotted below

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

Blue-tailed Emerald

蓝尾翠蜂鸟(Chlorostilbon mellisugus)是一种体长7-8厘米、广泛分布的小型蜂鸟，分布范围从哥伦比亚、委内瑞拉经圭亚那延伸至特立尼达。雄鸟背部翠绿色，尾羽蓝色。以花蜜为食，常见于开阔林地和花园中。

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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