Rufous-booted Racket-tail vs Red-billed Streamertail
Ocreatus addae dibandingkan dengan Trochilus polytmus
Side-by-Side Comparison
| Atribut | Rufous-booted Racket-tail | Red-billed Streamertail |
|---|---|---|
| Nama Ilmiah | Ocreatus addae | Trochilus polytmus |
| Ordo | Caprimulgiformes | Caprimulgiformes |
| Famili | Trochilidae | Trochilidae |
| Status Konservasi | Not Evaluated | Least Concern |
| Panjang | — | — |
| Rentang Sayap | — | 11,8 cm (4.6 in) |
| Berat | 3,0 g (0.11 oz) | 4,9 g (0.17 oz) |
| Diet | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Visits flowering trees and epiphytes for nectar; supplements diet with small arthropods including gnats, midges, … |
| Ukuran Sarang | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Red-billed Streamertail
Sharp, emphatic two-note call; high accented first note followed by lower brief second, clearly projected.
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.
Red-billed Streamertail
Endemic to Jamaica. National bird. Resident across the island in forests, gardens, and plantations at all elevations.
Status Konservasi
Rufous-booted Racket-tail
Red-billed Streamertail
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
Red-billed Streamertail
Goliath Coucal: large; dark glossy black-brown above; rufous wings; dark streaked below; red eye; massive size; long graduated 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.
Red-billed Streamertail
A spectacular hummingbird (9-10 cm body + 15-18 cm tail streamers in males) endemic to Jamaica. Males have two extremely long, black tail feathers trailing behind in flight, a red bill, and iridescent green body. Jamaica's national bird. Nectarivore of forest and gardens.