Rufous-booted Racket-tail vs Violet-chested Hummingbird
Ocreatus addae so với Sternoclyta cyanopectus
Side-by-Side Comparison
| Thuộc Tính | Rufous-booted Racket-tail | Violet-chested Hummingbird |
|---|---|---|
| Tên Khoa Học | Ocreatus addae | Sternoclyta cyanopectus |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Not Evaluated | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | — | 14,0 cm (5.5 in) |
| Khối Lượng | 3,0 g (0.11 oz) | 7,816666666666667 g (0.28 oz) |
| Chế Độ Ăn | 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. |
| Số Trứng | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Rufous-booted Racket-tail only
Không
Violet-chested Hummingbird only
Không
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.
Tình Trạng Bảo Tồn
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.