White-tailed Hummingbird vs Amethyst-throated Mountain-gem
Eupherusa poliocerca 对比 Lampornis amethystinus
Side-by-Side Comparison
| 属性 | White-tailed Hummingbird | Amethyst-throated Mountain-gem |
|---|---|---|
| 学名 | Eupherusa poliocerca | Lampornis amethystinus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Near Threatened | Least Concern |
| 体长 | — | — |
| 翼展 | 12.1 cm (4.8 in) | 13.1 cm (5.2 in) |
| 体重 | 4.625 g (0.16 oz) | 5.6000000000000005 g (0.20 oz) |
| 食性 | Feeds on nectar from flowering shrubs and epiphytes. Catches small insects and spiders to meet … | Nectarivore of Mexican and Central American montane pine-oak forest; visits Ericaceae and Salvia. Gleans arthropods. |
| 产卵数 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
White-tailed Hummingbird
Harsh, buzzy chatter with emphatic rhythm; coarse rough notes delivered rapidly with raw buzzy texture.
Amethyst-throated Mountain-gem
Pure, sustained flute-like tone held steady; single clear note with barely perceptible vibrato in tropical shade.
Geographic Range & Migration
White-tailed Hummingbird
Endemic to the Sierra Madre del Sur of Guerrero and Oaxaca, Mexico. Classified as Vulnerable due to restricted range.
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
White-tailed Hummingbird
Amethyst-throated Mountain-gem
About These Birds
White-tailed Hummingbird
白尾叶绿蜂鸟，体长10-11厘米。墨西哥南部马德雷山脉特有种。易危。
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.