Rufous-booted Racket-tail vs Fork-tailed Woodnymph
Ocreatus addae 비교 대상 Thalurania furcata
Side-by-Side Comparison
| 속성 | Rufous-booted Racket-tail | Fork-tailed Woodnymph |
|---|---|---|
| 학명 | Ocreatus addae | Thalurania furcata |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Trochilidae | Trochilidae |
| 보전 상태 | Not Evaluated | Least Concern |
| 체장 | — | — |
| 날개 폭 | — | 10.9 cm (4.3 in) |
| 체중 | 3.0 g (0.11 oz) | 4.4 g (0.16 oz) |
| 식성 | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Widespread Amazonian nectarivore visiting diverse forest-floor flowers. Supplements with insects and spiders caught in flight. |
| 산란 수 | 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.
Fork-tailed Woodnymph
Buzzy, insect-like trill with monotonous quality; sustained rapid vibration with minimal melodic content.
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.
Fork-tailed Woodnymph
Widely distributed in humid forests from Venezuela through Amazonia to Brazil, Bolivia, and Argentina. Resident.
보전 상태
Rufous-booted Racket-tail
Fork-tailed Woodnymph
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
Fork-tailed Woodnymph
Blue Bustard: males with slate-blue neck and breast; brown-vermiculated above; white belly; females brown above; pale below
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.
Fork-tailed Woodnymph
포크꼬리 벌새는 남아메리카 북부와 아마존 유역에 서식하는 중형 벌새입니다. 수컷은 금속 녹색 왕관과 광택 있는 보라빛-녹색 아랫면, 깊이 갈라진 파란 꼬리가 특징입니다.