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Side-by-Side Comparison

属性	Black-hooded Sunbeam	Sword-billed Hummingbird
学名	Aglaeactis pamela	Ensifera ensifera
目	Caprimulgiformes	Caprimulgiformes
科	Trochilidae	Trochilidae
保护状况	Least Concern	Least Concern
体长	—	—
翼展	13.6 cm (5.4 in)	15.3 cm (6.0 in)
体重	5.5 g (0.19 oz)	12.75 g (0.45 oz)
食性	Nectarivore of Bolivian high-altitude scrub; forages at Chuquiraga and Ericaceae. Catches small insects opportunistically.	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

Black-hooded Sunbeam only

无

Sword-billed Hummingbird only

🌾 Grassland

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Song & Call Comparison

Black-hooded Sunbeam

鸣唱

Deep, resonant churring with hollow quality; prolonged low buzzing trill carrying well through Andean scrub habitat.

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

Black-hooded Sunbeam

Endemic to Bolivia in high Andean puna of Cochabamba and La Paz at 3,200–4,600 m elevation.

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

Black-hooded Sunbeam

Least Concern

Sword-billed Hummingbird

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How to Tell Them Apart

Black-hooded Sunbeam

羽毛

Hoary Puffleg: males with brilliant white pufflegs; glittering violet gorget; metallic green above; 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

Black-hooded Sunbeam

黑辉蜂鸟（Aglaeactis pamela），体长12-13厘米，特产于玻利维亚安第斯山脉，海拔2,500至3,500米。属蜂鸟科（Trochilidae），雄鸟背部具黑色辉光斑块，是玻利维亚的特有种。

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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More Birds to Explore

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