White-tailed Starfrontlet vs Rufous-booted Racket-tail
Coeligena phalerata dibandingkan dengan Ocreatus addae
Side-by-Side Comparison
| Atribut | White-tailed Starfrontlet | Rufous-booted Racket-tail |
|---|---|---|
| Nama Ilmiah | Coeligena phalerata | Ocreatus addae |
| Ordo | Caprimulgiformes | Caprimulgiformes |
| Famili | Trochilidae | Trochilidae |
| Status Konservasi | Near Threatened | Not Evaluated |
| Panjang | — | — |
| Rentang Sayap | 14,1 cm (5.6 in) | — |
| Berat | 6,1 g (0.22 oz) | 3,0 g (0.11 oz) |
| Diet | Nectarivore of restricted Colombian range; visits Ericaceae and bromeliads in humid cloud forest. Supplements with … | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| Ukuran Sarang | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
White-tailed Starfrontlet
Melodic, two-note ascending whistle; pure first tone rising to brighter second, given with clear projection from perch.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
White-tailed Starfrontlet
Endemic to the Sierra Nevada de Santa Marta, Colombia, in cloud forest and forest edge. 1,800–3,000 m.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
Status Konservasi
White-tailed Starfrontlet
Rufous-booted Racket-tail
How to Tell Them Apart
White-tailed Starfrontlet
Mountain Velvetbreast: tiny; males with brilliant blue-violet gorget; metallic green above; white underparts; females green above; 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
White-tailed Starfrontlet
A medium-sized hummingbird (13-14 cm) endemic to the Sierra Nevada de Santa Marta, Colombia, at 1,800-3,000 m. Green plumage with white outer tail feathers. Nectarivore of montane forest. A Santa Marta endemic found nowhere else in the world.
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.