Green Violetear vs Rufous-booted Racket-tail
Colibri thalassinus 比較対象 Ocreatus addae
Side-by-Side Comparison
| 属性 | Green Violetear | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Colibri thalassinus | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Not Evaluated |
| 体長 | — | — |
| 翼開長 | 12.5 cm (4.9 in) | — |
| 体重 | 5.092499999999999 g (0.18 oz) | 3.0 g (0.11 oz) |
| 食性 | Nectarivore of montane gardens and cloud-forest borders. Takes small insects in aerial sallies from prominent … | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| 一腹卵数 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Green Violetear
Melodic, descending four-note phrase; clear flute-like tones stepping down smoothly, characteristic of violetear territory song.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Green Violetear
Found in highlands from central Mexico south through Central America to western Bolivia. Common in montane forest at 1,000–3,000 m.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
保全状況
Green Violetear
Rufous-booted Racket-tail
How to Tell Them Apart
Green Violetear
Short-tailed Emerald: iridescent green above with coppery rump; white underparts; rufous flanks; sexually dimorphic; straight short bill
Rufous-booted Racket-tail
Golden-bellied Starfrontlet: tiny; males with brilliant orange-gold belly; violet gorget; females green above; spotted buff below
About These Birds
Green Violetear
A medium-sized hummingbird (10-12 cm) with brilliant green plumage and iridescent violet-blue ear patches. Found in highlands from Mexico to Nicaragua at 1,000-3,500 m. Nectarivore of mountain forests, gardens, and cloud forest edges. Common and conspicuous. Formerly included Lesser Violetear.
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.