Xantus's Hummingbird vs Rufous-booted Racket-tail
Basilinna xantusii 比較対象 Ocreatus addae
Side-by-Side Comparison
| 属性 | Xantus's Hummingbird | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Basilinna xantusii | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Not Evaluated |
| 体長 | — | — |
| 翼開長 | 10.2 cm (4.0 in) | — |
| 体重 | 3.525 g (0.12 oz) | 3.0 g (0.11 oz) |
| 食性 | Endemic to Baja California; feeds on nectar from desert blooms and supplements with small insects … | 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
Xantus's Hummingbird
High, crystalline twittering with bright silvery quality; rapid light notes cascading freely in aerial display.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Xantus's Hummingbird
Endemic to the cape region of Baja California Sur, Mexico. Resident in dry scrub and thorn forest.
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
Xantus's Hummingbird
Rufous-booted Racket-tail
About These Birds
Xantus's Hummingbird
メキシコのバハ・カリフォルニア・スール州南端固有の中型ハチドリ（9〜10cm）。緑色の羽毛に赤褐色の胸と白い眼帯を持つ。乾燥した低木地とトゲのある林の蜜食者。ハンガリーの博物学者ジョン・ザンタスにちなんで命名されたバハ・カリフォルニア固有種。
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.