Empress Brilliant vs Rufous-booted Racket-tail
Heliodoxa imperatrix so với Ocreatus addae
Side-by-Side Comparison
| Thuộc Tính | Empress Brilliant | Rufous-booted Racket-tail |
|---|---|---|
| Tên Khoa Học | Heliodoxa imperatrix | 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 | 8,8 g (0.31 oz) | 3,0 g (0.11 oz) |
| Chế Độ Ăn | Nectarivore of Colombian Pacific slope cloud forest; forages at Ericaceae and Heliconia. Supplements with small … | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| Số Trứng | 1 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Empress Brilliant
High, crystalline series of musical notes; clear bright sequence ascending smoothly in characteristically cheerful manner.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Empress Brilliant
Found on the Pacific slope of Colombia and Ecuador in humid lowland and foothill forest. Sea level to 1,200 m.
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
Empress Brilliant
Rufous-booted Racket-tail
How to Tell Them Apart
Empress Brilliant
Purple-collared Woodstar (alt): tiny; males with brilliant blue-violet gorget; metallic green above; females plain; pale spotted below
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
Empress Brilliant
A large hummingbird (13-14 cm) found in humid forests of western Colombia and Ecuador at 400-1,600 m. Males have an iridescent green crown and violet-blue throat. Nectarivore of Chocó forest. Named Empress for the regal appearance. Classified as Near Threatened.
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.