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Side-by-Side Comparison

属性	Sword-billed Hummingbird	Slender-tailed Woodstar
学名	Ensifera ensifera	Microstilbon burmeisteri
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)	6.0 cm (2.4 in)
体重	12.75 g (0.45 oz)	2.09 g (0.07 oz)
食性	Nectarivore uniquely adapted to extremely long flowers of Passiflora and Datura. Supplements with small insects …	Nectarivore of montane scrub, probing small tubular flowers. Catches spiders and minute flies to supply …
一腹卵数	--	2
Population Trend	—	—

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Habitat Comparison

共通生息地

🌲 Forest

Sword-billed Hummingbird only

🌾 Grassland

Slender-tailed Woodstar 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.

Slender-tailed Woodstar

さえずり

Soft, liquid descending cascade; gentle mellow notes flowing downward in quiet musical sequence at dawn.

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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.

Slender-tailed Woodstar

Found in arid scrub and woodland of central Bolivia and northwestern Argentina at 1,000-3,000 m. Resident and partial migrant.

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保全状況

Least Concern

Sword-billed Hummingbird

Least Concern

Slender-tailed Woodstar

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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

Slender-tailed Woodstar

羽毛

Lucifer Sheartail: males with iridescent purple forked gorget extending to sides; metallic green above; females green above; spotted

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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。

Slender-tailed Woodstar

アルゼンチンとボリビアの低木林や森林縁部に生息するシャムショールドハミングバード。体長7〜8cm。雄の輝く緑と赤紫色の羽毛が特徴的な小型ハチドリ。花の蜜を主食とする。低危険種。

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