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Side-by-Side Comparison

属性	Amazilia Hummingbird	Olivaceous Thornbill
学名	Amazilis amazilia	Chalcostigma olivaceum
目	Caprimulgiformes	Caprimulgiformes
科	Trochilidae	Trochilidae
保护状况	Least Concern	Least Concern
体长	—	—
翼展	—	16.3 cm (6.4 in)
体重	5.066666666666666 g (0.18 oz)	7.3999999999999995 g (0.26 oz)
食性	Feeds on nectar from flowering shrubs and epiphytes. Catches small insects and spiders to meet …	Nectarivore of high Bolivian and Peruvian páramo; short bill accesses small open flowers. Gleans insects …
产卵数	2	2
Population Trend	—	—

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Habitat Comparison

共同栖息地

🌲 Forest

Amazilia Hummingbird only

🏜️ Desert 🏖️ Coastal

Olivaceous Thornbill only

🌾 Grassland

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Song & Call Comparison

Amazilia Hummingbird

鸣唱

Buzzy, high-pitched trill with insect-like quality; rapid sustained vibration barely distinguishable from insects.

Olivaceous Thornbill

鸣唱

Buzzy, high-frequency trill with insect-like quality; sustained continuous vibration with rapid amplitude modulation.

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Geographic Range & Migration

Amazilia Hummingbird

Found in arid coastal lowlands of western Peru and Ecuador. Resident in desert scrub and river valleys.

Olivaceous Thornbill

Widespread in high Andean puna grassland from Peru to Bolivia and northwestern Argentina. 3,200–4,800 m.

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保护状况

Least Concern

Amazilia Hummingbird

Least Concern

Olivaceous Thornbill

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How to Tell Them Apart

Amazilia Hummingbird

羽毛

Coucal (Celebes): dark glossy black above; rufous wings; pale buff below; long dark tail; red eye; Sulawesi island endemic coucal

Olivaceous Thornbill

羽毛

Blue-tufted Starthroat: males with iridescent blue-green gorget; metallic green above; white pectoral tufts; females green above; spots

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About These Birds

Amazilia Hummingbird

秘鲁蜂鸟（Amazilis amazilia），体长9-10厘米，分布于秘鲁和厄瓜多尔西部干燥沿海低地。体羽绿色，下体浅色。属蜂鸟科（Trochilidae），是南美洲西部海岸的特有种。

Olivaceous Thornbill

橄榄金刚尾蜂鸟 (Chalcostigma olivaceum)，体长约12厘米。体羽橄榄绿色，喉部颜色较暗，尾长而分叉。分布于秘鲁和玻利维亚安第斯山脉的高海拔草甸。以花蜜为食，在多风的高山环境中悬停采蜜。

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