Buff-tailed Sicklebill vs Rufous-booted Racket-tail
Eutoxeres condamini 比較対象 Ocreatus addae
Side-by-Side Comparison
| 属性 | Buff-tailed Sicklebill | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Eutoxeres condamini | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Not Evaluated |
| 体長 | — | — |
| 翼開長 | 13.7 cm (5.4 in) | — |
| 体重 | 9.98 g (0.35 oz) | 3.0 g (0.11 oz) |
| 食性 | Nectar and arthropod feeder; hovers to extract nectar from pendant flowers and snatches small insects … | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| 一腹卵数 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Buff-tailed Sicklebill
Sharp, scratchy chip note repeated rapidly; dry staccato delivery with rough texture, audible during competitive interactions.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Buff-tailed Sicklebill
Found in the eastern Andes from Colombia and Ecuador south to Bolivia at 400–1,500 m. Resident in forest undergrowth at Heliconia flowers.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
保全状況
Buff-tailed Sicklebill
Rufous-booted Racket-tail
How to Tell Them Apart
Buff-tailed Sicklebill
Green-bronze upperparts; buff and dark brown heavily streaked underparts; buff-tipped tail feathers; strongly sickle-shaped curved bill; sexes similar; buff tail tips distinguish from White-tipped Sicklebill; Andean foothills specialist.
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
Buff-tailed Sicklebill
コロンビアからボリビアにかけて分布するハチドリで、強く下に曲がった嘴と茶色の尾が特徴。
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.