Purple-backed Sunbeam vs Ruby-throated Hummingbird
Aglaeactis aliciae 对比 Archilochus colubris
Side-by-Side Comparison
| 属性 | Purple-backed Sunbeam | Ruby-throated Hummingbird |
|---|---|---|
| 学名 | Aglaeactis aliciae | Archilochus colubris |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Vulnerable | Least Concern |
| 体长 | — | 8.5 cm (3.3 in) |
| 翼展 | 16.2 cm (6.4 in) | 11.0 cm (4.3 in) |
| 体重 | 7.4 g (0.26 oz) | 3.1 g (0.11 oz) |
| 食性 | Nectarivore of restricted Peruvian high puna; visits Chuquiraga and cushion-plant flowers. Gleans tiny arthropods. | Nectar from tubular flowers, supplemented with small insects and spiders for protein. Feeds at over … |
| 产卵数 | -- | 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
Purple-backed Sunbeam
Sharp, buzzy chip followed by rapid trill; emphatic onset launching into rough cascading notes typical of sunbeam.
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
Purple-backed Sunbeam
Endemic to Peru along the Río Marañón drainage in the arid upper Andes. 2,400–3,800 m. Critically endangered.
Ruby-throated Hummingbird
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
保护状况
Purple-backed Sunbeam
Ruby-throated Hummingbird
How to Tell Them Apart
Purple-backed Sunbeam
Blue-capped Puffleg: males with brilliant blue cap and gorget; metallic green body; white leg puffs; females green above; spotted
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
Purple-backed Sunbeam
紫背辉蜂鸟（Aglaeactis aliciae），体长12-13厘米，特产于秘鲁北部安第斯山脉一小片区域，海拔2,900至3,700米。属蜂鸟科（Trochilidae），背部具闪光紫色斑块，分布极为局限，受到保护关注。
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.