Bolivian Starfrontlet vs Ruby-throated Hummingbird
Coeligena violifer 比較対象 Archilochus colubris
Side-by-Side Comparison
| 属性 | Bolivian Starfrontlet | Ruby-throated Hummingbird |
|---|---|---|
| 学名 | Coeligena violifer | 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 | 14.6 cm (5.7 in) | 11.0 cm (4.3 in) |
| 体重 | 7.675 g (0.27 oz) | 3.1 g (0.11 oz) |
| 食性 | Nectarivore of Colombian and Venezuelan Andean cloud forest; visits Ericaceae and epiphyte blooms. Gleans small … | Nectar from tubular flowers, supplemented with small insects and spiders for protein. Feeds at over … |
| 一腹卵数 | -- | 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
Bolivian Starfrontlet
Bright, whistled descending phrase; clean notes stepping down smoothly with precision and musical elegance in Andes.
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
Bolivian Starfrontlet
Found in Andean cloud forests of Bolivia and Peru on the eastern slope at 1,800–3,400 m elevation.
Ruby-throated Hummingbird
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
保全状況
Bolivian Starfrontlet
Ruby-throated Hummingbird
How to Tell Them Apart
Bolivian Starfrontlet
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
Bolivian Starfrontlet
A medium-sized hummingbird (13-14 cm) found in the Andes from Peru to Bolivia at 2,500-3,500 m. Males have violet breast and green body. Nectarivore of cloud forest and páramo edges. An attractive Andean starfrontlet with iridescent violet patches.
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.