Hooded Visorbearer vs Ruby-throated Hummingbird
Augastes lumachella 比較対象 Archilochus colubris
Side-by-Side Comparison
| 属性 | Hooded Visorbearer | Ruby-throated Hummingbird |
|---|---|---|
| 学名 | Augastes lumachella | Archilochus colubris |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Near Threatened | Least Concern |
| 体長 | — | 8.5 cm (3.3 in) |
| 翼開長 | 12.0 cm (4.7 in) | 11.0 cm (4.3 in) |
| 体重 | 4.4 g (0.16 oz) | 3.1 g (0.11 oz) |
| 食性 | Nectarivore specializing in montane campo rupestre blooms. Supplements nectar diet with small arthropods. | Nectar from tubular flowers, supplemented with small insects and spiders for protein. Feeds at over … |
| 一腹卵数 | 2 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Ruby-throated Hummingbird
Deciduous and mixed forests, woodland edges, gardens, and parks with flowering plants. Migrates across the Gulf of Mexico.
Song & Call Comparison
Hooded Visorbearer
Harsh, buzzy chatter with raspy edge; rough notes interspersed with sharper chips in energetic vocal display.
Ruby-throated Hummingbird
Soft, high-pitched chattering and twittering 'chee-dit'. Also produces a thin 'tik' call in flight. Wing beats create an audible high-pitched humming buzz during hovering.
Geographic Range & Migration
Hooded Visorbearer
Endemic to the campo rupestre highlands of eastern Bahia, Brazil, in the Chapada Diamantina region. 800–1,600 m.
Ruby-throated Hummingbird
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
保全状況
Hooded Visorbearer
Ruby-throated Hummingbird
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
Ruby-throated Hummingbird
Metallic green upperparts and greyish-white underparts. Males have a brilliant iridescent ruby-red gorget that appears black in poor light. Females lack the gorget.
Long, straight, thin black bill adapted for probing flowers
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。
Ruby-throated Hummingbird
The ruby-throated hummingbird is the only breeding hummingbird in eastern North America. These tiny birds beat their wings about 53 times per second and can fly backwards, sideways, and even briefly upside down. They make an extraordinary non-stop 800 km crossing of the Gulf of Mexico during migration.