Xantus's Hummingbird vs Ruby-throated Hummingbird
Basilinna xantusii 比較対象 Archilochus colubris
Side-by-Side Comparison
| 属性 | Xantus's Hummingbird | Ruby-throated Hummingbird |
|---|---|---|
| 学名 | Basilinna xantusii | Archilochus colubris |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | 8.5 cm (3.3 in) |
| 翼開長 | 10.2 cm (4.0 in) | 11.0 cm (4.3 in) |
| 体重 | 3.525 g (0.12 oz) | 3.1 g (0.11 oz) |
| 食性 | Endemic to Baja California; feeds on nectar from desert blooms and supplements with small insects … | Nectar from tubular flowers, supplemented with small insects and spiders for protein. Feeds at over … |
| 一腹卵数 | 2 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Ruby-throated Hummingbird
Deciduous and mixed forests, woodland edges, gardens, and parks with flowering plants. Migrates across the Gulf of Mexico.
Song & Call Comparison
Xantus's Hummingbird
High, crystalline twittering with bright silvery quality; rapid light notes cascading freely in aerial display.
Ruby-throated Hummingbird
Soft, high-pitched chattering and twittering 'chee-dit'. Also produces a thin 'tik' call in flight. Wing beats create an audible high-pitched humming buzz during hovering.
Geographic Range & Migration
Xantus's Hummingbird
Endemic to the cape region of Baja California Sur, Mexico. Resident in dry scrub and thorn forest.
Ruby-throated Hummingbird
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
保全状況
Xantus's Hummingbird
Ruby-throated Hummingbird
How to Tell Them Apart
Xantus's Hummingbird
Great Blue Turaco: large; brilliant turquoise-blue body; yellow-red bill; red-tipped yellow crest; black-tipped blue tail; unique
Ruby-throated Hummingbird
Metallic green upperparts and greyish-white underparts. Males have a brilliant iridescent ruby-red gorget that appears black in poor light. Females lack the gorget.
Long, straight, thin black bill adapted for probing flowers
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。
Ruby-throated Hummingbird
The ruby-throated hummingbird is the only breeding hummingbird in eastern North America. These tiny birds beat their wings about 53 times per second and can fly backwards, sideways, and even briefly upside down. They make an extraordinary non-stop 800 km crossing of the Gulf of Mexico during migration.