White-tailed Emerald vs Rufous-booted Racket-tail
Microchera chionura 比較対象 Ocreatus addae
Side-by-Side Comparison
| 属性 | White-tailed Emerald | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Microchera chionura | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Not Evaluated |
| 体長 | — | — |
| 翼開長 | — | — |
| 体重 | 3.2 g (0.11 oz) | 3.0 g (0.11 oz) |
| 食性 | Visits flowering trees and epiphytes for nectar; supplements diet with small arthropods including gnats, midges, … | 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-tailed Emerald
Melodic, flute-like phrase with warm timbre; smooth notes flowing in relaxed quiet progression at forest edge.
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 Emerald
Found in humid forests of western Panama and extreme western Colombia. Resident in lowland and foothill forest.
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-tailed Emerald
Rufous-booted Racket-tail
About These Birds
White-tailed Emerald
コスタリカとパナマの山地林に生息するホワイトテイルドハミングバード。体長7〜9cm。雄の白い尾が特徴的。山地の花の蜜を主食とする。低危険種。
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.