Hooded Visorbearer vs Rufous-booted Racket-tail
Augastes lumachella 比較対象 Ocreatus addae
Side-by-Side Comparison
| 属性 | Hooded Visorbearer | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Augastes lumachella | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Near Threatened | Not Evaluated |
| 体長 | — | — |
| 翼開長 | 12.0 cm (4.7 in) | — |
| 体重 | 4.4 g (0.16 oz) | 3.0 g (0.11 oz) |
| 食性 | Nectarivore specializing in montane campo rupestre blooms. Supplements nectar diet with small arthropods. | 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
Hooded Visorbearer
Harsh, buzzy chatter with raspy edge; rough notes interspersed with sharper chips in energetic vocal display.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Hooded Visorbearer
Endemic to the campo rupestre highlands of eastern Bahia, Brazil, in the Chapada Diamantina region. 800–1,600 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
Hooded Visorbearer
Rufous-booted Racket-tail
How to Tell Them Apart
Hooded Visorbearer
Booted Racket-tail: males with elongated violet-blue racket tail feathers; glittering blue-violet gorget; white leg puffs; green body
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
Hooded Visorbearer
ブラジル・バイア州のシャパーダ・ジアマンティーナ高地固有の小型ハチドリ（8〜9cm）。黄金色に輝く緑色の前額バイザーと暗色の羽毛を持つ。岩礁のカンポ・ルペストレ生息地の蜜食者。極めて限られた分布域と生息地劣化により絶滅危惧種に分類。
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.