White-tailed Starfrontlet vs Rufous-booted Racket-tail
Coeligena phalerata 对比 Ocreatus addae
Side-by-Side Comparison
| 属性 | White-tailed Starfrontlet | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Coeligena phalerata | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Near Threatened | Not Evaluated |
| 体长 | — | — |
| 翼展 | 14.1 cm (5.6 in) | — |
| 体重 | 6.1 g (0.22 oz) | 3.0 g (0.11 oz) |
| 食性 | Nectarivore of restricted Colombian range; visits Ericaceae and bromeliads in humid cloud forest. Supplements with … | 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
White-tailed Starfrontlet
Melodic, two-note ascending whistle; pure first tone rising to brighter second, given with clear projection from perch.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
White-tailed Starfrontlet
Endemic to the Sierra Nevada de Santa Marta, Colombia, in cloud forest and forest edge. 1,800–3,000 m.
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-tailed Starfrontlet
Rufous-booted Racket-tail
How to Tell Them Apart
White-tailed Starfrontlet
Mountain Velvetbreast: tiny; males with brilliant blue-violet gorget; metallic green above; white underparts; females green above; 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
White-tailed Starfrontlet
白尾星额蜂鸟(Coeligena phalerata)是一种体长13-14厘米的中型蜂鸟，为哥伦比亚内华达-德圣马尔塔山脉特有种，分布于海拔1800-3000米。绿色羽毛，具白色尾羽。以花蜜为食。
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.