Western Emerald vs Rufous-booted Racket-tail
Chlorostilbon melanorhynchus 对比 Ocreatus addae
Side-by-Side Comparison
| 属性 | Western Emerald | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Chlorostilbon melanorhynchus | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Not Evaluated | Not Evaluated |
| 体长 | — | — |
| 翼展 | — | — |
| 体重 | 2.675 g (0.09 oz) | 3.0 g (0.11 oz) |
| 食性 | Nectarivore of western Colombian and Ecuadorian forest. Supplements diet with small arthropods caught near blossoms. | 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
Western Emerald
Melodic, ascending phrase with hopeful character; smooth pure tones rising in clear musical progression at dawn.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Western Emerald
Found from Panama to Peru along the western Andean foothills. Resident in forest edges and gardens at low to mid elevations.
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
Western Emerald
Rufous-booted Racket-tail
How to Tell Them Apart
Western Emerald
White-chested Emerald: males with iridescent green gorget; metallic green above; white chest; females green above; spotted white below
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
Western Emerald
西方翠蜂鸟(Chlorostilbon melanorhynchus)是一种体长8-9厘米的小型蜂鸟，分布于从巴拿马到秘鲁西部安第斯山麓。雄鸟通体翠绿色。以花蜜为食，栖息于西安第斯山脉的热带低地和山麓森林中。
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.