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Side-by-Side Comparison

属性	Sword-billed Hummingbird	White-tailed Emerald
学名	Ensifera ensifera	Microchera chionura
目	Caprimulgiformes	Caprimulgiformes
科	Trochilidae	Trochilidae
保全状況	Least Concern	Least Concern
体長	—	—
翼開長	15.3 cm (6.0 in)	—
体重	12.75 g (0.45 oz)	3.2 g (0.11 oz)
食性	Nectarivore uniquely adapted to extremely long flowers of Passiflora and Datura. Supplements with small insects …	Visits flowering trees and epiphytes for nectar; supplements diet with small arthropods including gnats, midges, …
一腹卵数	--	--
Population Trend	—	—

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Habitat Comparison

共通生息地

🌲 Forest

Sword-billed Hummingbird only

🌾 Grassland

White-tailed Emerald only

None

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Song & Call Comparison

Sword-billed Hummingbird

さえずり

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

White-tailed Emerald

さえずり

Melodic, flute-like phrase with warm timbre; smooth notes flowing in relaxed quiet progression at forest edge.

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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.

White-tailed Emerald

Found in humid forests of western Panama and extreme western Colombia. Resident in lowland and foothill forest.

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保全状況

Least Concern

Sword-billed Hummingbird

Least Concern

White-tailed Emerald

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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

White-tailed Emerald

羽毛

Bengal Florican: males with black head and underparts; white wings; brown back; females sandy-brown all over; highly dimorphic

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About These Birds

Sword-billed Hummingbird

アンデスの雲霧林に生息するハチドリで、体と同じ長さの嘴を持つ。自然界で嘴が最も長い鳥の一つ。

White-tailed Emerald

コスタリカとパナマの山地林に生息するホワイトテイルドハミングバード。体長7〜9cm。雄の白い尾が特徴的。山地の花の蜜を主食とする。低危険種。

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