Rufous-booted Racket-tail vs Band-tailed Barbthroat
Ocreatus addae so với Threnetes ruckeri
Side-by-Side Comparison
| Thuộc Tính | Rufous-booted Racket-tail | Band-tailed Barbthroat |
|---|---|---|
| Tên Khoa Học | Ocreatus addae | Threnetes ruckeri |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Not Evaluated | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | — | 11,3 cm (4.4 in) |
| Khối Lượng | 3,0 g (0.11 oz) | 6,0 g (0.21 oz) |
| Chế Độ Ăn | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Nectarivore specialising in long curved tubular flowers; also hawks small flies and midges near forest … |
| Số Trứng | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Rufous-booted Racket-tail only
Không
Band-tailed Barbthroat 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.
Band-tailed Barbthroat
Crisp, emphatic single chip repeated at intervals; clear staccato note with sharp attack and brief resonant tail.
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.
Band-tailed Barbthroat
Found from southern Mexico through Central America to western Colombia and northwestern Venezuela. Resident in lowland forest and shaded streams.
Tình Trạng Bảo Tồn
Rufous-booted Racket-tail
Band-tailed Barbthroat
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
Band-tailed Barbthroat
Bronze-green upperparts; pale buff underparts with dark throat; broad black-and-white banded tail with rufous base; blackish chin and throat with pale malar stripe; Central American species with boldly banded tail …
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.
Band-tailed Barbthroat
A medium-sized hummingbird (10-12 cm) with a decurved bill, found in humid lowland forests from Guatemala to northwestern Colombia. Green plumage with a pale breast band. Named for the barb-like feathers on its throat. Nectarivore of forest undergrowth, visiting Heliconia flowers.