Violet-throated Metaltail vs Rufous-booted Racket-tail
Metallura baroni 비교 대상 Ocreatus addae
Side-by-Side Comparison
| 속성 | Violet-throated Metaltail | Rufous-booted Racket-tail |
|---|---|---|
| 학명 | Metallura baroni | Ocreatus addae |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Trochilidae | Trochilidae |
| 보전 상태 | Vulnerable | Not Evaluated |
| 체장 | — | — |
| 날개 폭 | 11.4 cm (4.5 in) | — |
| 체중 | 4.4 g (0.16 oz) | 3.0 g (0.11 oz) |
| 식성 | Nectarivore of Ecuadorian treeline vegetation; specialized for Ericaceae blooms above 3000 m. Catches small arthropods. | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| 산란 수 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Violet-throated Metaltail
Melodic, flute-like phrase with clear quality; smooth notes flowing pleasantly in quiet sequence at forest edge.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Violet-throated Metaltail
Endemic to a tiny area in the Cajas plateau region of southwestern Ecuador. 3,000–4,200 m. Critically endangered.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
보전 상태
Violet-throated Metaltail
Rufous-booted Racket-tail
How to Tell Them Apart
Violet-throated Metaltail
Green-throated Mountain-gem: males with glittering green gorget; metallic green above; white underparts; females green above; spotted
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
Violet-throated Metaltail
소형 벌새로 체장 약 10cm이며, 수컷은 광택 있는 초록에 자주빛 보석색 목과 동색 꽁지를 갖는다. 에콰도르 남부 고지대 관목지에만 서식하는 희귀 고유종이다. 꽃의 꿀을 빨아 먹는다. 위기에 처한 상태이다.
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.