Buff-tailed Coronet vs Rufous-booted Racket-tail
Boissonneaua flavescens 比較対象 Ocreatus addae
Side-by-Side Comparison
| 属性 | Buff-tailed Coronet | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Boissonneaua flavescens | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Not Evaluated |
| 体長 | — | — |
| 翼開長 | 15.0 cm (5.9 in) | — |
| 体重 | 8.033333333333333 g (0.28 oz) | 3.0 g (0.11 oz) |
| 食性 | Nectarivore of Andean cloud forest; visits Ericaceae and Fuchsia blooms. Aggressively defends territories; gleans small … | 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 Coronet
Soft, pure descending whistle; gentle note curving downward smoothly, warm and musical in cloud forest quiet.
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 Coronet
Found in Andean cloud forests from Venezuela south through Colombia, Ecuador, and Peru to Bolivia. 1,600–3,000 m.
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 Coronet
Rufous-booted Racket-tail
How to Tell Them Apart
Buff-tailed Coronet
White-bearded Helmetcrest: males with glittering blue-violet gorget; metallic green; white beard; white leg puffs; females plain green
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 Coronet
ベネズエラからペルーにかけてのアンデス雲霧林の標高1,500〜3,000mに生息する中型のハチドリ（11〜12cm）。緑の羽毛と黄橙色の尾を持つ。山地林と林縁の蜜食者。頭冠の緑色の虹彩光によりコロネットの名が付く。
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.