Bolivian Starfrontlet vs Rufous-booted Racket-tail
Coeligena violifer so với Ocreatus addae
Side-by-Side Comparison
| Thuộc Tính | Bolivian Starfrontlet | Rufous-booted Racket-tail |
|---|---|---|
| Tên Khoa Học | Coeligena violifer | Ocreatus addae |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Least Concern | Not Evaluated |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 14,6 cm (5.7 in) | — |
| Khối Lượng | 7,675 g (0.27 oz) | 3,0 g (0.11 oz) |
| Chế Độ Ăn | Nectarivore of Colombian and Venezuelan Andean cloud forest; visits Ericaceae and epiphyte blooms. Gleans small … | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| Số Trứng | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Bolivian Starfrontlet only
Không
Rufous-booted Racket-tail only
Không
Song & Call Comparison
Bolivian Starfrontlet
Bright, whistled descending phrase; clean notes stepping down smoothly with precision and musical elegance in Andes.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Bolivian Starfrontlet
Found in Andean cloud forests of Bolivia and Peru on the eastern slope at 1,800–3,400 m elevation.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
Tình Trạng Bảo Tồn
Bolivian Starfrontlet
Rufous-booted Racket-tail
How to Tell Them Apart
Bolivian Starfrontlet
Black-hooded Sunbeam: males with glittering magenta gorget; metallic green above; black hood; females plain green above; spotted
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
Bolivian Starfrontlet
A medium-sized hummingbird (13-14 cm) found in the Andes from Peru to Bolivia at 2,500-3,500 m. Males have violet breast and green body. Nectarivore of cloud forest and páramo edges. An attractive Andean starfrontlet with iridescent violet patches.
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.