Rufous-booted Racket-tail vs Buff-bellied Hermit
Ocreatus addae 对比 Phaethornis subochraceus
Side-by-Side Comparison
| 属性 | Rufous-booted Racket-tail | Buff-bellied Hermit |
|---|---|---|
| 学名 | Ocreatus addae | Phaethornis subochraceus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Not Evaluated | Least Concern |
| 体长 | — | — |
| 翼展 | — | 10.1 cm (4.0 in) |
| 体重 | 3.0 g (0.11 oz) | 4.0 g (0.14 oz) |
| 食性 | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Nectarivore with elongated bill suited to pendant tubular flowers. Gleans small spiders and mites from … |
| 产卵数 | 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.
Buff-bellied Hermit
Rapid, light twittering cascade; airy high notes tumbling quickly in animated sequence during courtship display flight.
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.
Buff-bellied Hermit
Endemic to central and southwestern Brazil in cerrado woodland edges and dry forest gallery. Found at 400–900 m.
保护状况
Rufous-booted Racket-tail
Buff-bellied 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
Buff-bellied Hermit
Needle-billed Hermit: heavily streaked tawny underparts; brown-olive above; pale supercilium; very fine needle-like decurved bill; streaked throat
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.
Buff-bellied Hermit
A small hermit hummingbird (10-12 cm) found in dry deciduous forests and cerrado of central Bolivia and western Brazil. Buff-orange belly, green upperparts, and a curved bill. Nectarivore of dry forest undergrowth. An uncommon species of semi-arid habitats.