Hooded Visorbearer vs Allen's Hummingbird
Augastes lumachella 比較対象 Selasphorus sasin
Side-by-Side Comparison
| 属性 | Hooded Visorbearer | Allen's Hummingbird |
|---|---|---|
| 学名 | Augastes lumachella | Selasphorus sasin |
| 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) | 8.1 cm (3.2 in) |
| 体重 | 4.4 g (0.16 oz) | 3.1500000000000004 g (0.11 oz) |
| 食性 | Nectarivore specializing in montane campo rupestre blooms. Supplements nectar diet with small arthropods. | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … |
| 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.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Hooded Visorbearer
Endemic to the campo rupestre highlands of eastern Bahia, Brazil, in the Chapada Diamantina region. 800–1,600 m.
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
保全状況
Hooded Visorbearer
Allen's 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
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale 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。
Allen's Hummingbird
A small hummingbird (8-9 cm) breeding along the Pacific coast from Oregon to southern California. Males have an orange-red throat and rufous flanks. Closely related to Rufous Hummingbird. Partial migrant; some populations resident on Channel Islands. Named after Thomas Allen.