Glittering-throated Emerald vs Rufous-booted Racket-tail
Chionomesa fimbriata compared with Ocreatus addae
Side-by-Side Comparison
| Attribute | Glittering-throated Emerald | Rufous-booted Racket-tail |
|---|---|---|
| Scientific Name | Chionomesa fimbriata | Ocreatus addae |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Trochilidae | Trochilidae |
| Conservation Status | Least Concern | Not Evaluated |
| Length | — | — |
| Wingspan | — | — |
| Weight | 4.766666666666667 g (0.17 oz) | 3.0 g (0.11 oz) |
| Diet | Nectarivore probing tubular flowers in humid forest. Supplements nectar diet with small insects and spiders … | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| Clutch Size | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Shared Habitats
Glittering-throated Emerald only
Rufous-booted Racket-tail only
None
Song & Call Comparison
Glittering-throated Emerald
Buzzy, high-pitched insect-like trill; sustained rapid vibration with minimal melodic content near blossoms.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Glittering-throated Emerald
Widely distributed from Colombia through Amazonia to Brazil, Bolivia, and Argentina. Resident in varied habitats.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
Conservation Status
Glittering-throated Emerald
Rufous-booted Racket-tail
About These Birds
Glittering-throated Emerald
A medium-sized hummingbird (10-11 cm) widely distributed from Colombia through Amazonia to Brazil, Bolivia, and Argentina. Glittering green throat with white fringes creating a spangled effect. Nectarivore of forest edges, gardens, and open habitats.
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.