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Side-by-Side Comparison

属性	Sword-billed Hummingbird	White-necked Jacobin
学名	Ensifera ensifera	Florisuga mellivora
目	Caprimulgiformes	Caprimulgiformes
科	Trochilidae	Trochilidae
保护状况	Least Concern	Least Concern
体长	—	—
翼展	15.3 cm (6.0 in)	13.6 cm (5.4 in)
体重	12.75 g (0.45 oz)	7.666666666666667 g (0.27 oz)
食性	Nectarivore uniquely adapted to extremely long flowers of Passiflora and Datura. Supplements with small insects …	Nectar generalist visiting a wide range of forest flowers; also catches small arthropods by aerial …
产卵数	--	1-3
Population Trend	—	—

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Habitat Comparison

共同栖息地

🌲 Forest

Sword-billed Hummingbird only

🌾 Grassland

White-necked Jacobin only

无

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Song & Call Comparison

Sword-billed Hummingbird

鸣唱

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

White-necked Jacobin

鸣唱

High, insect-like buzzing sustained for several seconds; thin monotone delivered continuously during hovering display flight.

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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-necked Jacobin

Found from Mexico south through Central America to Venezuela, Trinidad, and the western Amazon. Common in lowland forest edge and gardens.

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保护状况

Least Concern

Sword-billed Hummingbird

Least Concern

White-necked Jacobin

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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-necked Jacobin

羽毛

Males vivid blue head and throat; white nape and hindneck contrasting sharply with blue; white belly; green back; white tail with dark terminal band; females brown above, spotted below; bold …

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About These Birds

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。

White-necked Jacobin

白颈雅各宾蜂鸟，体长11-12厘米。胸部白色，头部深蓝色，背部绿色。分布于墨西哥至巴西和特立尼达。

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