Rufous-booted Racket-tail vs Volcano Hummingbird
Ocreatus addae 비교 대상 Selasphorus flammula
Side-by-Side Comparison
| 속성 | Rufous-booted Racket-tail | Volcano Hummingbird |
|---|---|---|
| 학명 | Ocreatus addae | Selasphorus flammula |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Trochilidae | Trochilidae |
| 보전 상태 | Not Evaluated | Least Concern |
| 체장 | — | — |
| 날개 폭 | — | 8.0 cm (3.1 in) |
| 체중 | 3.0 g (0.11 oz) | 2.6999999999999997 g (0.10 oz) |
| 식성 | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Highland nectarivore of Costa Rican volcanoes, feeding at Fuchsia and bromeliads. Captures small arthropods for … |
| 산란 수 | 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.
Volcano Hummingbird
Sharp, crackling trill with percussive edge; rapid dry notes delivered forcefully during territorial encounter.
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.
Volcano Hummingbird
Endemic to the highlands of Costa Rica at 1,800-3,500 m, particularly around volcanic peaks. Resident in páramo and elfin forest.
보전 상태
Rufous-booted Racket-tail
Volcano 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.
Volcano Hummingbird
A tiny hummingbird (7-8 cm) endemic to the highlands of Costa Rica at 1,800-3,500 m, particularly around volcanic peaks. Males have a brilliantly colored gorget varying geographically from magenta to gray-purple. Nectarivore of páramo and high-elevation gardens.