White-chinned Sapphire vs Rufous-booted Racket-tail
Chlorestes cyanus 比較対象 Ocreatus addae
Side-by-Side Comparison
| 属性 | White-chinned Sapphire | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Chlorestes cyanus | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Not Evaluated |
| 体長 | — | — |
| 翼開長 | — | — |
| 体重 | 3.35 g (0.12 oz) | 3.0 g (0.11 oz) |
| 食性 | Feeds on nectar from flowering shrubs and epiphytes. Catches small insects and spiders to meet … | 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
White-chinned Sapphire
Pure, bell-like descending phase; clear resonant tones stepping smoothly down in musical evening sequence.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
White-chinned Sapphire
Found in humid lowland forests from Colombia through the Guianas to Amazonia and Brazil. Resident.
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
White-chinned Sapphire
Rufous-booted Racket-tail
How to Tell Them Apart
White-chinned Sapphire
Crested Coua: blue-gray body; white below; brilliant blue and red bare facial skin; long tail; white-tipped; Madagascar endemic
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
White-chinned Sapphire
コロンビアからギアナ・アマゾニア・ブラジルの湿潤低地林に生息する小型ハチドリ（8〜9 cm）。青または白い顎を持つ緑色の羽衣。林冠・林縁で花蜜を吸う。
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.