Red-billed Emerald vs Rufous-booted Racket-tail
Chlorostilbon gibsoni so với Ocreatus addae
Side-by-Side Comparison
| Thuộc Tính | Red-billed Emerald | Rufous-booted Racket-tail |
|---|---|---|
| Tên Khoa Học | Chlorostilbon gibsoni | Ocreatus addae |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Least Concern | Not Evaluated |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 9,9 cm (3.9 in) | — |
| Khối Lượng | 3,4 g (0.12 oz) | 3,0 g (0.11 oz) |
| Chế Độ Ăn | Feeds on floral nectar in lowland Venezuelan scrub and forest. Gleans insects and spiders to … | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| Số Trứng | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Red-billed Emerald
Harsh, buzzy chatter with urgency; rough staccato notes escalating quickly during competitive flower territory dispute.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Red-billed Emerald
Found in dry valleys and scrub of Colombia and Venezuela. Resident in arid and semi-arid habitats at low elevations.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
Tình Trạng Bảo Tồn
Red-billed Emerald
Rufous-booted Racket-tail
How to Tell Them Apart
Red-billed Emerald
Versicolored Emerald: males with glittering multicolored 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
Red-billed Emerald
A small hummingbird (8-9 cm) found in dry valleys and scrub of Colombia and Venezuela. Bright green plumage with a red bill with dark tip. Nectarivore of arid and semi-arid habitats. Named after the naturalist William Gibson.
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.