Rufous-tailed Hummingbird vs Ruby-throated Hummingbird
Amazilia tzacatl 比較対象 Archilochus colubris
Side-by-Side Comparison
| 属性 | Rufous-tailed Hummingbird | Ruby-throated Hummingbird |
|---|---|---|
| 学名 | Amazilia tzacatl | 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 | 11.3 cm (4.4 in) | 11.0 cm (4.3 in) |
| 体重 | 5.04 g (0.18 oz) | 3.1 g (0.11 oz) |
| 食性 | Common lowland nectarivore of Central America; visits Heliconia, banana, and garden flowers. Supplements with 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
Rufous-tailed Hummingbird
Deep, resonant trill with buzzing character; powerful churring vibration carrying across open hillside.
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
Rufous-tailed Hummingbird
Widely distributed from Mexico through Central America to western Ecuador. Resident in varied lowland habitats.
Ruby-throated Hummingbird
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
保全状況
Rufous-tailed Hummingbird
Ruby-throated Hummingbird
How to Tell Them Apart
Rufous-tailed Hummingbird
Rufous Coucal: entirely rufous-brown overall; long dark graduated tail; red eye; monochromatic rufous plumage; sexually similar
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
Rufous-tailed Hummingbird
メキシコから南米北西部にかけて広く分布するハチドリ（体長9〜11cm）。金属光沢のある緑色の体と赤褐色の尾羽が特徴。Amazilia tzacatl（ルーフォウステイルドアマゾンハチドリ）は標高0〜2,500mの熱帯・亜熱帯林縁、庭園、農地に生息し、様々な花の蜜を吸う。中央アメリカで最もよく見られるハチドリの一つ。Trochilidae科。
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.