Rufous-booted Racket-tail vs Streak-throated Hermit
Ocreatus addae 比較対象 Phaethornis rupurumii
Side-by-Side Comparison
| 属性 | Rufous-booted Racket-tail | Streak-throated Hermit |
|---|---|---|
| 学名 | Ocreatus addae | Phaethornis rupurumii |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 8.6 cm (3.4 in) |
| 体重 | 3.0 g (0.11 oz) | 3.1 g (0.11 oz) |
| 食性 | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Nectarivore and insectivore; extracts nectar from trap-lining flowers and hawks small flying insects in forest … |
| 一腹卵数 | 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.
Streak-throated Hermit
High, thin peep barely audible beyond few metres; delicate single note repeated softly with long intervals in between.
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.
Streak-throated Hermit
Found in the Guiana Shield from Venezuela and Guyana south through Amazonia to Bolivia. Resident in lowland forest along streams and rivers.
保全状況
Rufous-booted Racket-tail
Streak-throated Hermit
How to Tell Them Apart
Rufous-booted Racket-tail
Golden-bellied Starfrontlet: tiny; males with brilliant orange-gold belly; violet gorget; females green above; spotted buff below
Streak-throated Hermit
Tiny; green-bronze upperparts; buff underparts with fine dark streaking on throat; pale supercilium; white-tipped central tail feathers; Guiana Shield species; streaked throat pattern distinguishes from other small hermits.
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.
Streak-throated Hermit
ギアナ高地とその周辺の熱帯雨林に生息するハチドリで、Rupurumiのハーミットとも呼ばれる。長い湾曲した嘴で花蜜を採取する。