Rufous-booted Racket-tail vs Green-bellied Hummingbird
Ocreatus addae 对比 Saucerottia viridigaster
Side-by-Side Comparison
| 属性 | Rufous-booted Racket-tail | Green-bellied Hummingbird |
|---|---|---|
| 学名 | Ocreatus addae | Saucerottia viridigaster |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Not Evaluated | Least Concern |
| 体长 | — | — |
| 翼展 | — | — |
| 体重 | 3.0 g (0.11 oz) | 4.366666666666666 g (0.15 oz) |
| 食性 | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Nectarivore of Andean foothills in Colombia and Venezuela; feeds at bromeliads and supplements with arthropods. |
| 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.
Green-bellied Hummingbird
Rough, grating chatter with coarse texture; harsh series of notes delivered emphatically during territorial encounter.
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.
Green-bellied Hummingbird
Found in Andean cloud forests from Colombia to Venezuela at 500-2,000 m. Resident in montane forest edges.
保护状况
Rufous-booted Racket-tail
Green-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
Green-bellied Hummingbird
Shining Bronze Coucal: glossy purple-blue sheen; chestnut wings; dark graduated tail; red eye; brilliant iridescence distinguishes it
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.
Green-bellied Hummingbird
A medium-sized hummingbird (9-10 cm) found in Andean cloud forests from Colombia to Venezuela at 500-2,000 m. Green plumage with green belly. Nectarivore of montane forest edges and gardens. Taxonomy complex with several subspecies.