Glittering-throated Emerald vs Rufous-booted Racket-tail
Chionomesa fimbriata 对比 Ocreatus addae
Side-by-Side Comparison
| 属性 | Glittering-throated Emerald | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Chionomesa fimbriata | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Not Evaluated |
| 体长 | — | — |
| 翼展 | — | — |
| 体重 | 4.766666666666667 g (0.17 oz) | 3.0 g (0.11 oz) |
| 食性 | Nectarivore probing tubular flowers in humid forest. Supplements nectar diet with small insects and spiders … | 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
Glittering-throated Emerald
Buzzy, high-pitched insect-like trill; sustained rapid vibration with minimal melodic content 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
Glittering-throated Emerald
Widely distributed from Colombia through Amazonia to Brazil, Bolivia, and Argentina. Resident in varied habitats.
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
Glittering-throated Emerald
Rufous-booted Racket-tail
How to Tell Them Apart
Glittering-throated Emerald
Green Coucal: greenish iridescent overall; rufous wings; pale buff below; long graduated tail; red eye; greenish gloss distinctive
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
Glittering-throated Emerald
翠腹叫声蜂鸟 (Chionomesa fimbriata)，体长约12厘米。上体闪亮绿色，下体白色，翅膀带紫色，尾短叉形。分布于南美洲北部低地，包括委内瑞拉、圭亚那和巴西北部。以花蜜和昆虫为食。
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.