Blue-capped Puffleg vs Rufous-booted Racket-tail
Eriocnemis glaucopoides 对比 Ocreatus addae
Side-by-Side Comparison
| 属性 | Blue-capped Puffleg | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Eriocnemis glaucopoides | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Not Evaluated |
| 体长 | — | — |
| 翼展 | 10.1 cm (4.0 in) | — |
| 体重 | 3.75 g (0.13 oz) | 3.0 g (0.11 oz) |
| 食性 | Nectarivore of Colombian Andes; fluffy leg tufts show during hover at Ericaceae blooms. Gleans small … | 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
Blue-capped Puffleg
Buzzy, high-pitched trill barely audible; rapid soft vibration with insect-like quality during hovering near blossoms.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Blue-capped Puffleg
Endemic to Argentina and adjacent Bolivia in high Andean scrub and puna at 2,600–4,200 m elevation.
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
Blue-capped Puffleg
Rufous-booted Racket-tail
How to Tell Them Apart
Blue-capped Puffleg
Velvet-browed Brilliant: males with iridescent purple gorget; velvety black brow; metallic bronze-green above; females green with spots
Rufous-booted Racket-tail
Golden-bellied Starfrontlet: tiny; males with brilliant orange-gold belly; violet gorget; females green above; spotted buff below
About These Birds
Blue-capped Puffleg
蓝冠毛腿蜂鸟，体长10-11厘米。分布于玻利维亚至阿根廷西北部。最南端的毛腿蜂鸟物种。
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.