Rufous-booted Racket-tail vs Copper-tailed Hummingbird
Ocreatus addae 比較対象 Saucerottia cupreicauda
Side-by-Side Comparison
| 属性 | Rufous-booted Racket-tail | Copper-tailed Hummingbird |
|---|---|---|
| 学名 | Ocreatus addae | Saucerottia cupreicauda |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | — |
| 体重 | 3.0 g (0.11 oz) | 4.066666666666667 g (0.14 oz) |
| 食性 | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Nectarivore specialising in tubular blossoms; supplements the floral nectar diet with tiny insects and spiders … |
| 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.
Copper-tailed Hummingbird
High, crystalline notes in animated ascending phrase; bright clear tones climbing smoothly in morning song.
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.
Copper-tailed Hummingbird
Found in humid montane forests of Colombia at 1,000-2,200 m. A Colombian near-endemic with limited range.
保全状況
Rufous-booted Racket-tail
Copper-tailed Hummingbird
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
Copper-tailed Hummingbird
Unirufous Coucal: entirely rich rufous-brown above and below; dark graduated tail; red eye; uniformly rufous plumage; distinctive
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.
Copper-tailed Hummingbird
A medium-sized hummingbird (9-10 cm) found in humid montane forests of Colombia at 1,000-2,200 m. Green plumage with a copper-colored tail. Nectarivore of cloud forest edges. A Colombian near-endemic with limited range.