Rufous-booted Racket-tail vs Violet-chested Hummingbird
Ocreatus addae 비교 대상 Sternoclyta cyanopectus
Side-by-Side Comparison
| 속성 | Rufous-booted Racket-tail | Violet-chested Hummingbird |
|---|---|---|
| 학명 | Ocreatus addae | Sternoclyta cyanopectus |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Trochilidae | Trochilidae |
| 보전 상태 | Not Evaluated | Least Concern |
| 체장 | — | — |
| 날개 폭 | — | 14.0 cm (5.5 in) |
| 체중 | 3.0 g (0.11 oz) | 7.816666666666667 g (0.28 oz) |
| 식성 | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Nectarivore of Venezuelan cloud forest; visits Ericaceae and large epiphyte flowers. Supplements with small arthropods. |
| 산란 수 | 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.
Violet-chested Hummingbird
Deep, resonant churring trill; prolonged buzzing sound carrying well across Andean scrub habitat at low frequency.
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.
Violet-chested Hummingbird
Found in humid montane forest of the coastal Cordillera and tepuis of Venezuela at 1,000–2,200 m elevation.
보전 상태
Rufous-booted Racket-tail
Violet-chested 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
Violet-chested Hummingbird
White-bellied Woodstar (alt): males with glittering purple gorget; metallic green above; white underparts; females green above; spots
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.
Violet-chested Hummingbird
A large hummingbird (12-13 cm) endemic to the coastal mountains of northern Venezuela at 900-2,500 m. Males have a striking violet-blue breast. Nectarivore of montane forest and coffee plantations. A range-restricted Venezuelan endemic.