Rufous-booted Racket-tail vs Planalto Hermit
Ocreatus addae 比較対象 Phaethornis pretrei
Side-by-Side Comparison
| 属性 | Rufous-booted Racket-tail | Planalto Hermit |
|---|---|---|
| 学名 | Ocreatus addae | Phaethornis pretrei |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 11.9 cm (4.7 in) |
| 体重 | 3.0 g (0.11 oz) | 5.0200000000000005 g (0.18 oz) |
| 食性 | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Nectarivore following trap-lining routes through Heliconia and Costus flowers. Catches small arthropods for protein. |
| 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.
Planalto Hermit
Melodic, rising whistle with hopeful quality; smooth ascending note curving upward then briefly hovering before fading.
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.
Planalto Hermit
Endemic to eastern and central Brazil from Piauí and Goiás to Mato Grosso. Found in cerrado and dry forest at 300–800 m.
保全状況
Rufous-booted Racket-tail
Planalto 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
Planalto Hermit
Long-tailed Hermit: rufous below; glossy green crown; broad white supercilium; elongated white-tipped central tail feathers; buff undertail
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.
Planalto Hermit
ブラジル中部のセラードと熱帯・亜熱帯林に生息するハチドリで、Pretreiのハーミットとも呼ばれる。長い嘴で花蜜を採取し、特定の植物に依存する。