Purple-backed Sunbeam vs Rufous-booted Racket-tail
Aglaeactis aliciae 对比 Ocreatus addae
Side-by-Side Comparison
| 属性 | Purple-backed Sunbeam | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Aglaeactis aliciae | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Vulnerable | Not Evaluated |
| 体长 | — | — |
| 翼展 | 16.2 cm (6.4 in) | — |
| 体重 | 7.4 g (0.26 oz) | 3.0 g (0.11 oz) |
| 食性 | Nectarivore of restricted Peruvian high puna; visits Chuquiraga and cushion-plant flowers. Gleans tiny arthropods. | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| 产卵数 | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Purple-backed Sunbeam
Sharp, buzzy chip followed by rapid trill; emphatic onset launching into rough cascading notes typical of sunbeam.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
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.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
保护状况
Purple-backed Sunbeam
Rufous-booted Racket-tail
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。
Rufous-booted Racket-tail
A small hummingbird (8-10 cm plus tail rackets) found in Andean cloud forests of southeastern Peru and Bolivia at 1,200-2,200 m. Males have rufous leg puffs instead of white. Recently split from Booted Racket-tail. Nectarivore of montane forest undergrowth.