Hyacinth Visorbearer vs Allen's Hummingbird
Augastes scutatus 比較対象 Selasphorus sasin
Side-by-Side Comparison
| 属性 | Hyacinth Visorbearer | Allen's Hummingbird |
|---|---|---|
| 学名 | Augastes scutatus | Selasphorus sasin |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 10.7 cm (4.2 in) | 8.1 cm (3.2 in) |
| 体重 | 3.3 g (0.12 oz) | 3.1500000000000004 g (0.11 oz) |
| 食性 | Nectarivore of Brazilian cerrado flowers, particularly Vellozia and Qualea. Catches small insects near rocky outcrops. | 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
Hyacinth Visorbearer
Soft, pure sustained tone with gentle vibrato; single melodic note trembling slightly, typical of quiet upland forest perches.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Hyacinth Visorbearer
Endemic to the campo rupestre of the Espinhaço Range in Minas Gerais, Brazil. Found at 900–1,600 m elevation.
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
Hyacinth Visorbearer
Allen's Hummingbird
How to Tell Them Apart
Hyacinth Visorbearer
Velvet-purple Coronet: brilliant velvety purple head; glittering green gorget; iridescent purple body; white underparts; straight bill
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
Hyacinth Visorbearer
ブラジル南東部の高地、特にミナス・ジェライス州固有の小型ハチドリ（8〜9cm）。虹彩色のヒヤシンスブルーの前額バイザーと緑色の羽毛を持つ。疎らな植生の岩礁カンポ・ルペストレ生息地の蜜食者。準絶滅危惧に分類。
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.