Rufous-booted Racket-tail vs Cinnamon-throated Hermit
Ocreatus addae 比較対象 Phaethornis nattereri
Side-by-Side Comparison
| 属性 | Rufous-booted Racket-tail | Cinnamon-throated Hermit |
|---|---|---|
| 学名 | Ocreatus addae | Phaethornis nattereri |
| 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) | 2.8 g (0.10 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 | -- |
| 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.
Cinnamon-throated Hermit
Pure, sustained whistle with bell-like clarity; single note held steadily then gently fading, given from tall forest perch.
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.
Cinnamon-throated Hermit
Endemic to the cerrado and caatinga transition zones of central and northeastern Brazil. Found at 200–800 m elevation.
保全状況
Rufous-booted Racket-tail
Cinnamon-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
Cinnamon-throated Hermit
White-tipped Sicklebill: rufous underparts with white streaking; dark olive-brown above; white lateral crown stripe; pronounced decurved bill
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.
Cinnamon-throated Hermit
ブラジル中部からボリビアにかけての熱帯・亜熱帯林に生息するハチドリで、ナッテラーの業績にちなんで命名されている。