Rufous-booted Racket-tail vs Purple-chested Hummingbird
Ocreatus addae dibandingkan dengan Polyerata rosenbergi
Side-by-Side Comparison
| Atribut | Rufous-booted Racket-tail | Purple-chested Hummingbird |
|---|---|---|
| Nama Ilmiah | Ocreatus addae | Polyerata rosenbergi |
| Ordo | Caprimulgiformes | Caprimulgiformes |
| Famili | Trochilidae | Trochilidae |
| Status Konservasi | Not Evaluated | Least Concern |
| Panjang | — | — |
| Rentang Sayap | — | — |
| Berat | 3,0 g (0.11 oz) | 3,8 g (0.13 oz) |
| Diet | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Nectarivore probing tubular flowers in humid forest. Supplements nectar diet with small insects and spiders … |
| 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.
Purple-chested Hummingbird
Soft, pure whistle with warm timbre; gentle sustained note barely wavering, given quietly from forest perch.
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.
Purple-chested Hummingbird
Found in humid Pacific lowland forests from eastern Panama to western Ecuador. Resident in Chocó forest.
Status Konservasi
Rufous-booted Racket-tail
Purple-chested Hummingbird
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
Purple-chested Hummingbird
Sumatran Ground-cuckoo: dark glossy green above; rufous-buff below; blue facial skin; long tail; massive bill; Sumatra endemic
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.
Purple-chested Hummingbird
A small hummingbird (8-9 cm) found in humid Pacific lowland forests from eastern Panama to western Ecuador. Males have a rich purple breast patch. Nectarivore of Chocó forest edges. Named after the German zoologist William Rosenberg.