Rufous-booted Racket-tail vs Band-tailed Barbthroat
Ocreatus addae 比較対象 Threnetes ruckeri
Side-by-Side Comparison
| 属性 | Rufous-booted Racket-tail | Band-tailed Barbthroat |
|---|---|---|
| 学名 | Ocreatus addae | Threnetes ruckeri |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 11.3 cm (4.4 in) |
| 体重 | 3.0 g (0.11 oz) | 6.0 g (0.21 oz) |
| 食性 | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Nectarivore specialising in long curved tubular flowers; also hawks small flies and midges near forest … |
| 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.
Band-tailed Barbthroat
Crisp, emphatic single chip repeated at intervals; clear staccato note with sharp attack and brief resonant tail.
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.
Band-tailed Barbthroat
Found from southern Mexico through Central America to western Colombia and northwestern Venezuela. Resident in lowland forest and shaded streams.
保全状況
Rufous-booted Racket-tail
Band-tailed Barbthroat
How to Tell Them Apart
Rufous-booted Racket-tail
Band-tailed Barbthroat
Bronze-green upperparts; pale buff underparts with dark throat; broad black-and-white banded tail with rufous base; blackish chin and throat with pale malar stripe; Central American species with boldly banded tail …
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.
Band-tailed Barbthroat
バンドテイルバーブスロートはパナマからエクアドルにかけての熱帯雨林に生息するハチドリです。尾羽の縞模様が特徴的です。