White-vented Violetear vs Ruby-throated Hummingbird
Colibri serrirostris 对比 Archilochus colubris
Side-by-Side Comparison
| 属性 | White-vented Violetear | Ruby-throated Hummingbird |
|---|---|---|
| 学名 | Colibri serrirostris | Archilochus colubris |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | 8.5 cm (3.3 in) |
| 翼展 | 13.6 cm (5.4 in) | 11.0 cm (4.3 in) |
| 体重 | 6.199999999999999 g (0.22 oz) | 3.1 g (0.11 oz) |
| 食性 | Nectarivore of highland and lowland forest margins. Feeds on diverse tubular flowers and catches flying … | Nectar from tubular flowers, supplemented with small insects and spiders for protein. Feeds at over … |
| 产卵数 | 1-2 | 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
White-vented Violetear
Sharp, emphatic squeak repeated quickly; tiny piercing notes delivered insistently during competitive encounters near feeders.
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
White-vented Violetear
Found in cerrado, chaco, and open woodland of central and southern Brazil, Bolivia, and Paraguay. 200–1,200 m elevation.
Ruby-throated Hummingbird
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
保护状况
White-vented Violetear
Ruby-throated Hummingbird
How to Tell Them Apart
White-vented Violetear
Coppery Emerald: iridescent bronze-green with coppery rump; violet-blue gorget; white belly patch; rufous flanks; females plain below
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
White-vented Violetear
白臀紫耳蜂鸟(Colibri serrirostris)是一种体长11-12厘米的中型蜂鸟，具有绿色羽毛、紫色耳斑和独特的白色臀部。分布于巴西中部、玻利维亚东部和阿根廷北部的塞拉多草原。以花蜜为食。
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.