Purple-throated Mountain-gem vs Rufous-booted Racket-tail
Lampornis calolaemus so với Ocreatus addae
Side-by-Side Comparison
| Thuộc Tính | Purple-throated Mountain-gem | Rufous-booted Racket-tail |
|---|---|---|
| Tên Khoa Học | Lampornis calolaemus | Ocreatus addae |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Least Concern | Not Evaluated |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 12,5 cm (4.9 in) | — |
| Khối Lượng | 5,625 g (0.20 oz) | 3,0 g (0.11 oz) |
| Chế Độ Ăn | Nectarivore of Costa Rican highlands; visits Ericaceae and Fuchsia blooms. Catches small insects near flowering … | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| Số Trứng | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Purple-throated Mountain-gem only
Không
Rufous-booted Racket-tail only
Không
Song & Call Comparison
Purple-throated Mountain-gem
Melodic, rolling phrase with rich warm timbre; bubbly musical notes tumbling pleasantly in relaxed sequence.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Purple-throated Mountain-gem
Found in highland forest from Costa Rica and Nicaragua to Guatemala and Honduras. 600–2,400 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
Purple-throated Mountain-gem
Rufous-booted Racket-tail
How to Tell Them Apart
Purple-throated Mountain-gem
Broad-tailed Hummingbird: tiny; males with brilliant violet gorget; metallic green above; white flanks; females plain green; spots
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
Purple-throated Mountain-gem
A medium-sized hummingbird (10-11 cm) found in cloud forests of Nicaragua, Costa Rica, and western Panama at 800-2,000 m. Males have a brilliant purple throat. Nectarivore of cloud forest and forest edges. Common at highland feeders in Costa Rica.
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.