Rufous-booted Racket-tail vs Tepui Goldenthroat
Ocreatus addae so với Polytmus milleri
Side-by-Side Comparison
| Thuộc Tính | Rufous-booted Racket-tail | Tepui Goldenthroat |
|---|---|---|
| Tên Khoa Học | Ocreatus addae | Polytmus milleri |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Not Evaluated | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | — | 12,8 cm (5.0 in) |
| Khối Lượng | 3,0 g (0.11 oz) | 4,76 g (0.17 oz) |
| Chế Độ Ăn | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Nectarivore visiting tepui shrub flowers and lowland grasses. Supplements nectar with small arthropods gleaned from … |
| Số Trứng | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Rufous-booted Racket-tail only
Không
Tepui Goldenthroat only
Song & Call Comparison
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Tepui Goldenthroat
Pure, bell-like tone with long resonance; single clear note ringing out then slowly fading in open woodland.
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.
Tepui Goldenthroat
Found on tepui plateaus of Venezuela and adjacent Guyana and Brazil in open highland vegetation. 1,200–2,800 m.
Tình Trạng Bảo Tồn
Rufous-booted Racket-tail
Tepui Goldenthroat
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.
Tepui Goldenthroat
A medium-sized hummingbird (10-11 cm) endemic to the tepui highlands of southern Venezuela and adjacent Guyana. Green plumage with a golden throat. Nectarivore of tepui scrub and forest edges. Restricted to the Pantepui region above 1,000 m. Poorly known.