White-bellied Hummingbird vs Rufous-booted Racket-tail
Elliotomyia chionogaster 对比 Ocreatus addae
Side-by-Side Comparison
| 属性 | White-bellied Hummingbird | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Elliotomyia chionogaster | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Not Evaluated |
| 体长 | — | — |
| 翼展 | — | — |
| 体重 | 5.525 g (0.19 oz) | 3.0 g (0.11 oz) |
| 食性 | Hovering nectarivore of lowland and montane forest, probing Heliconia and garden flowers. Supplements with insects … | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| 产卵数 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
White-bellied Hummingbird
Melodic, rolling phrase with rich bubbly timbre; warm notes tumbling loosely in pleasant continuous sequence.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
White-bellied Hummingbird
Found in Andean highlands from Peru to Argentina at 2,000-4,000 m. Resident in montane scrub and Polylepis woodland.
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
White-bellied Hummingbird
Rufous-booted Racket-tail
About These Birds
White-bellied Hummingbird
小型蜂鸟（体长9-10厘米），栖息于秘鲁至阿根廷的安第斯高地。绿色羽毛，腹部白色。
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.