Rufous-booted Racket-tail vs Chestnut-bellied Hummingbird
Ocreatus addae 对比 Saucerottia castaneiventris
Side-by-Side Comparison
| 属性 | Rufous-booted Racket-tail | Chestnut-bellied Hummingbird |
|---|---|---|
| 学名 | Ocreatus addae | Saucerottia castaneiventris |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Not Evaluated | Near Threatened |
| 体长 | — | — |
| 翼展 | — | — |
| 体重 | 3.0 g (0.11 oz) | 5.0 g (0.18 oz) |
| 食性 | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Feeds on nectar from flowering shrubs and epiphytes. Catches small insects and spiders to meet … |
| 产卵数 | 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.
Chestnut-bellied Hummingbird
Melodic, flute-like phrase with clear warm quality; smooth notes flowing pleasantly in quiet forest sequence.
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.
Chestnut-bellied Hummingbird
Endemic to the eastern Andes of Colombia at 1,400-2,700 m. Classified as Endangered due to limited range.
保护状况
Rufous-booted Racket-tail
Chestnut-bellied 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
Chestnut-bellied Hummingbird
Centropus menbeki: large; dark glossy black-brown; rich chestnut wings; long dark tail; red eye; New Guinea endemic coucal
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.
Chestnut-bellied Hummingbird
A medium-sized hummingbird (9-10 cm) endemic to the eastern Andes of Colombia at 1,400-2,700 m. Males have a distinctive chestnut-red belly. Green body. Nectarivore of cloud forest and forest edges. Classified as Endangered due to limited Colombian range.