Royal Sunangel vs Rufous-booted Racket-tail
Heliangelus regalis 比較対象 Ocreatus addae
Side-by-Side Comparison
| 属性 | Royal Sunangel | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Heliangelus regalis | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Near Threatened | Not Evaluated |
| 体長 | — | — |
| 翼開長 | 10.4 cm (4.1 in) | — |
| 体重 | 3.95 g (0.14 oz) | 3.0 g (0.11 oz) |
| 食性 | Nectarivore of restricted Andean endemism zone; forages at sparse Ericaceae and Gentianaceae blooms. Supplements with … | 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
Royal Sunangel
Buzzy, insect-like trill with pulsing quality; high-frequency vibration with slight amplitude modulation near blossoms.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Royal Sunangel
Endemic to a small area of the Río Marañón drainage in northern Peru at 1,800–2,800 m. Critically endangered.
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
Royal Sunangel
Rufous-booted Racket-tail
How to Tell Them Apart
Royal Sunangel
Fire-throated Metaltail: males with glittering fire-red gorget; metallic green above; white pectoral tufts; females green with spots below
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
Royal Sunangel
ペルー北部アンデスのごく限られた範囲（標高1,500〜2,500 m）に固有の見事なハチドリ（体長10〜12 cm）。雄は鮮やかな深い青色の喉と叉状の尾を持つ。コルディレラ・デル・コンドルの極めて限られた分布域により絶滅危惧種に分類。雲霧林の蜜食性。
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.