White-bellied Woodstar vs Rufous-booted Racket-tail
Chaetocercus mulsant 比較対象 Ocreatus addae
Side-by-Side Comparison
| 属性 | White-bellied Woodstar | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Chaetocercus mulsant | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Not Evaluated |
| 体長 | — | — |
| 翼開長 | 7.8 cm (3.1 in) | — |
| 体重 | 3.9 g (0.14 oz) | 3.0 g (0.11 oz) |
| 食性 | Feeds on floral nectar in Andean cloud forest, favouring small-flowered herbs. Supplements with spiders and … | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| 一腹卵数 | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
White-bellied Woodstar
Melodic, pure ascending phrase with bright character; clear notes rising smoothly in animated morning territorial song.
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 Woodstar
Found in Andean cloud forests from Colombia to Bolivia at 1,500-3,500 m elevation. Resident across the northern and central Andes.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
保全状況
White-bellied Woodstar
Rufous-booted Racket-tail
How to Tell Them Apart
White-bellied Woodstar
Beautiful Sheartail: males with brilliant violet-purple gorget; metallic green above; white underparts; females green above; spotted
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
White-bellied Woodstar
コロンビアからボリビアのアンデス雲霧林（1,500〜3,500 m）の微小ハチドリ（7〜8 cm）。雄は白い腹と虹色のゴージェット羽を持つ。林縁・開花低木で花蜜を吸う。
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.