Bronze-tailed Thornbill vs Rufous-booted Racket-tail
Chalcostigma heteropogon 비교 대상 Ocreatus addae
Side-by-Side Comparison
| 속성 | Bronze-tailed Thornbill | Rufous-booted Racket-tail |
|---|---|---|
| 학명 | Chalcostigma heteropogon | Ocreatus addae |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Trochilidae | Trochilidae |
| 보전 상태 | Least Concern | Not Evaluated |
| 체장 | — | — |
| 날개 폭 | 14.1 cm (5.6 in) | — |
| 체중 | 5.65 g (0.20 oz) | 3.0 g (0.11 oz) |
| 식성 | Nectarivore of high Andean grasslands and shrublands; visits Ericaceae and Gentianaceae blooms. Gleans tiny 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
Bronze-tailed Thornbill
Deep, hollow churring with resonant bass; prolonged low buzzing audible at range through open 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
Bronze-tailed Thornbill
Found in high Andean grassland and scrub from Venezuela through Colombia to Ecuador at 2,800–4,200 m.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
보전 상태
Bronze-tailed Thornbill
Rufous-booted Racket-tail
How to Tell Them Apart
Bronze-tailed Thornbill
Mangrove Hummingbird: tiny; males with violet gorget; metallic green above; white-spotted 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
Bronze-tailed Thornbill
콜롬비아에서 베네수엘라까지 안데스 구름 숲과 파라모 가장자리에 서식하는 소형 벌새 (10–11 cm). 수컷은 반짝이는 자홍-보라색 목. 꽃꿀 섭취.
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.