Costa's Hummingbird vs Ruby-throated Hummingbird
Calypte costae 比較対象 Archilochus colubris
Side-by-Side Comparison
| 属性 | Costa's Hummingbird | Ruby-throated Hummingbird |
|---|---|---|
| 学名 | Calypte costae | 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 | 8.9 cm (3.5 in) | 11.0 cm (4.3 in) |
| 体重 | 3.4000000000000004 g (0.12 oz) | 3.1 g (0.11 oz) |
| 食性 | Nectarivore of Mojave Desert scrub, favouring desert lavender and sage. Supplements nectar with insects and … | 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
共通生息地
None
Costa's Hummingbird only
Ruby-throated Hummingbird only
Ruby-throated Hummingbird
Deciduous and mixed forests, woodland edges, gardens, and parks with flowering plants. Migrates across the Gulf of Mexico.
Song & Call Comparison
Costa's Hummingbird
Melodic, flute-like ascending scale; smooth bright notes climbing steadily in cheerful morning territorial delivery.
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
Costa's Hummingbird
Found in arid western North America from California to Mexico. Breeds in desert scrub; some populations resident year-round.
Ruby-throated Hummingbird
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
保全状況
Costa's Hummingbird
Ruby-throated Hummingbird
How to Tell Them Apart
Costa's Hummingbird
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
Costa's Hummingbird
体長8〜9cmの紫色の頭頂と喉飾りを持つハチドリ。乾燥した西北米に生息する。
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.