Rufous-booted Racket-tail vs Berylline Hummingbird
Ocreatus addae 比較対象 Saucerottia beryllina
Side-by-Side Comparison
| 属性 | Rufous-booted Racket-tail | Berylline Hummingbird |
|---|---|---|
| 学名 | Ocreatus addae | Saucerottia beryllina |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | — |
| 体重 | 3.0 g (0.11 oz) | 4.3 g (0.15 oz) |
| 食性 | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Nectarivore of Mexican pine-oak highlands, visiting flowering trees and epiphytes. Supplements with insects and spiders. |
| 一腹卵数 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Berylline Hummingbird
Melodic, two-note ascending whistle; pure tones stepping upward clearly and repeatedly from active territory.
Geographic Range & Migration
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
Berylline Hummingbird
Found in highlands from Mexico to Honduras at 800-3,000 m. Resident in pine-oak forest and cloud forest edges.
保全状況
Rufous-booted Racket-tail
Berylline Hummingbird
About These Birds
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.
Berylline Hummingbird
A medium-sized hummingbird (9-10 cm) found in highlands from Mexico to Honduras at 800-3,000 m. Green plumage with beryl-green belly and rufous wing patches visible in flight. Nectarivore of pine-oak forest, gardens, and cloud forest edges. Common at Mexican feeders.