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Side-by-Side Comparison

属性	Purple-backed Sunbeam	Purple-throated Carib
学名	Aglaeactis aliciae	Eulampis jugularis
目	Caprimulgiformes	Caprimulgiformes
科	Trochilidae	Trochilidae
保护状况	Vulnerable	Least Concern
体长	—	—
翼展	16.2 cm (6.4 in)	14.3 cm (5.6 in)
体重	7.4 g (0.26 oz)	9.316666666666666 g (0.33 oz)
食性	Nectarivore of restricted Peruvian high puna; visits Chuquiraga and cushion-plant flowers. Gleans tiny arthropods.	Nectarivore of Caribbean island forests; bill adapted to visit Heliconia and Brugmansia. Takes small arthropods …
产卵数	--	2
Population Trend	—	—

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Habitat Comparison

共同栖息地

无

Purple-backed Sunbeam only

无

Purple-throated Carib only

🌲 Forest

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Song & Call Comparison

Purple-backed Sunbeam

鸣唱

Sharp, buzzy chip followed by rapid trill; emphatic onset launching into rough cascading notes typical of sunbeam.

Purple-throated Carib

鸣唱

Thin, sibilant twittering with airy quality; light high notes cascading softly in relaxed sequence near flowers.

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Geographic Range & Migration

Purple-backed Sunbeam

Endemic to Peru along the Río Marañón drainage in the arid upper Andes. 2,400–3,800 m. Critically endangered.

Purple-throated Carib

Found throughout the Lesser Antilles from Saba to Grenada. Prefers mature forest and flowering trees. Sea level to 800 m.

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保护状况

Vulnerable

Purple-backed Sunbeam

Least Concern

Purple-throated Carib

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How to Tell Them Apart

Purple-backed Sunbeam

羽毛

Blue-capped Puffleg: males with brilliant blue cap and gorget; metallic green body; white leg puffs; females green above; spotted

Purple-throated Carib

羽毛

Turquoise-throated Puffleg: iridescent violet crown; glittering turquoise gorget; metallic green back; white leg puffs; females duller

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About These Birds

Purple-backed Sunbeam

紫背辉蜂鸟（Aglaeactis aliciae），体长12-13厘米，特产于秘鲁北部安第斯山脉一小片区域，海拔2,900至3,700米。属蜂鸟科（Trochilidae），背部具闪光紫色斑块，分布极为局限，受到保护关注。

Purple-throated Carib

紫喉加勒比蜂鸟，体长11-12厘米。喉部虹彩紫色。小安的列斯群岛特有种。

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