Hooded Visorbearer vs Amethyst-throated Mountain-gem
Augastes lumachella 比較対象 Lampornis amethystinus
Side-by-Side Comparison
| 属性 | Hooded Visorbearer | Amethyst-throated Mountain-gem |
|---|---|---|
| 学名 | Augastes lumachella | Lampornis amethystinus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Near Threatened | Least Concern |
| 体長 | — | — |
| 翼開長 | 12.0 cm (4.7 in) | 13.1 cm (5.2 in) |
| 体重 | 4.4 g (0.16 oz) | 5.6000000000000005 g (0.20 oz) |
| 食性 | Nectarivore specializing in montane campo rupestre blooms. Supplements nectar diet with small arthropods. | Nectarivore of Mexican and Central American montane pine-oak forest; visits Ericaceae and Salvia. Gleans arthropods. |
| 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.
Amethyst-throated Mountain-gem
Pure, sustained flute-like tone held steady; single clear note with barely perceptible vibrato in tropical shade.
Geographic Range & Migration
Hooded Visorbearer
Endemic to the campo rupestre highlands of eastern Bahia, Brazil, in the Chapada Diamantina region. 800–1,600 m.
Amethyst-throated Mountain-gem
Found in montane forest from Mexico south through Guatemala and Honduras to El Salvador. 1,000–3,200 m.
保全状況
Hooded Visorbearer
Amethyst-throated Mountain-gem
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
Amethyst-throated Mountain-gem
Bumblebee Hummingbird: tiny; males with brilliant violet gorget; metallic green above; white underparts; females green above; spotted
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。
Amethyst-throated Mountain-gem
A medium-sized hummingbird (11-12 cm) found in mountain forests from Mexico to Honduras at 1,000-3,000 m. Males have an amethyst-purple throat. Nectarivore of pine-oak and cloud forest. Commonly visits feeders in Mexican highland gardens.