Purple-backed Sunbeam vs Amethyst-throated Mountain-gem
Aglaeactis aliciae 对比 Lampornis amethystinus
Side-by-Side Comparison
| 属性 | Purple-backed Sunbeam | Amethyst-throated Mountain-gem |
|---|---|---|
| 学名 | Aglaeactis aliciae | Lampornis amethystinus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Vulnerable | Least Concern |
| 体长 | — | — |
| 翼展 | 16.2 cm (6.4 in) | 13.1 cm (5.2 in) |
| 体重 | 7.4 g (0.26 oz) | 5.6000000000000005 g (0.20 oz) |
| 食性 | Nectarivore of restricted Peruvian high puna; visits Chuquiraga and cushion-plant flowers. Gleans tiny arthropods. | Nectarivore of Mexican and Central American montane pine-oak forest; visits Ericaceae and Salvia. Gleans arthropods. |
| 产卵数 | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Purple-backed Sunbeam
Sharp, buzzy chip followed by rapid trill; emphatic onset launching into rough cascading notes typical of sunbeam.
Amethyst-throated Mountain-gem
Pure, sustained flute-like tone held steady; single clear note with barely perceptible vibrato in tropical shade.
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.
Amethyst-throated Mountain-gem
Found in montane forest from Mexico south through Guatemala and Honduras to El Salvador. 1,000–3,200 m.
保护状况
Purple-backed Sunbeam
Amethyst-throated Mountain-gem
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
Amethyst-throated Mountain-gem
Bumblebee Hummingbird: tiny; males with brilliant violet gorget; metallic green above; white underparts; females green above; spotted
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。
Amethyst-throated Mountain-gem
A medium-sized hummingbird (11-12 cm) found in mountain forests from Mexico to Honduras at 1,000-3,000 m. Males have an amethyst-purple throat. Nectarivore of pine-oak and cloud forest. Commonly visits feeders in Mexican highland gardens.