Rufous-booted Racket-tail vs Andean Hillstar
Ocreatus addae so với Oreotrochilus estella
Side-by-Side Comparison
| Thuộc Tính | Rufous-booted Racket-tail | Andean Hillstar |
|---|---|---|
| Tên Khoa Học | Ocreatus addae | Oreotrochilus estella |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Not Evaluated | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | — | 14,4 cm (5.7 in) |
| Khối Lượng | 3,0 g (0.11 oz) | 8,299999999999999 g (0.29 oz) |
| Chế Độ Ăn | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Nectarivore of high-altitude puna and páramo; specializes in Chuquiraga and Puya flowers. Catches small insects … |
| Số Trứng | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Không
Rufous-booted Racket-tail only
Andean Hillstar only
Song & Call Comparison
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Andean Hillstar
High, wavering trill with trembling quality; rapid series of notes with slight pitch modulation giving vibrato effect.
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.
Andean Hillstar
Widespread in Andean puna of southern Peru, Bolivia, and northwestern Argentina at 3,000–5,000 m. Resident.
Tình Trạng Bảo Tồn
Rufous-booted Racket-tail
Andean Hillstar
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
Andean Hillstar
Santa Marta Woodstar: tiny; males with brilliant magenta-red gorget; metallic green crown; white underparts; females green above with 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.
Andean Hillstar
A medium-sized hummingbird (12-14 cm) found in the high Andes from Peru to Argentina and Chile at 3,500-5,000 m. Green plumage with a white breast. One of the highest-living hummingbird species, entering torpor at night to survive freezing temperatures. Nectarivore of Chuquiraga and cacti.