Rufous-booted Racket-tail vs Rufous-vented Whitetip
Ocreatus addae so với Urosticte ruficrissa
Side-by-Side Comparison
| Thuộc Tính | Rufous-booted Racket-tail | Rufous-vented Whitetip |
|---|---|---|
| Tên Khoa Học | Ocreatus addae | Urosticte ruficrissa |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Not Evaluated | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | — | 11,4 cm (4.5 in) |
| Khối Lượng | 3,0 g (0.11 oz) | 4,15 g (0.15 oz) |
| Chế Độ Ăn | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Nectarivore of Ecuadorian and Peruvian montane forest; forages at Ericaceae and Fuchsia. Takes small insects. |
| Số Trứng | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Rufous-booted Racket-tail only
Không
Rufous-vented Whitetip only
Không
Song & Call Comparison
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Rufous-vented Whitetip
Pure, bell-like tones in descending sequence; clear musical notes stepping down smoothly with long resonant quality.
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.
Rufous-vented Whitetip
Found on the eastern Andean slope of Ecuador in cloud forest and forest edges. 800–1,800 m elevation.
Tình Trạng Bảo Tồn
Rufous-booted Racket-tail
Rufous-vented Whitetip
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
Rufous-vented Whitetip
Glittering Starfrontlet: males with glittering violet gorget; metallic green above; white underparts; females green above; spotted below
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.
Rufous-vented Whitetip
A small hummingbird (9-10 cm) found in Andean cloud forests from Colombia to Peru at 1,500-2,500 m. Green plumage with rufous vent and white-tipped tail. Nectarivore of montane forest. Closely related to Purple-bibbed Whitetip. Uncommon.