Bronze-tailed Thornbill vs Amethyst-throated Mountain-gem
Chalcostigma heteropogon 对比 Lampornis amethystinus
Side-by-Side Comparison
| 属性 | Bronze-tailed Thornbill | Amethyst-throated Mountain-gem |
|---|---|---|
| 学名 | Chalcostigma heteropogon | Lampornis amethystinus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 14.1 cm (5.6 in) | 13.1 cm (5.2 in) |
| 体重 | 5.65 g (0.20 oz) | 5.6000000000000005 g (0.20 oz) |
| 食性 | Nectarivore of high Andean grasslands and shrublands; visits Ericaceae and Gentianaceae blooms. Gleans tiny arthropods. | 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
Bronze-tailed Thornbill
Deep, hollow churring with resonant bass; prolonged low buzzing audible at range through open forest edge.
Amethyst-throated Mountain-gem
Pure, sustained flute-like tone held steady; single clear note with barely perceptible vibrato in tropical shade.
Geographic Range & Migration
Bronze-tailed Thornbill
Found in high Andean grassland and scrub from Venezuela through Colombia to Ecuador at 2,800–4,200 m.
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
Bronze-tailed Thornbill
Amethyst-throated Mountain-gem
How to Tell Them Apart
Bronze-tailed Thornbill
Mangrove Hummingbird: tiny; males with violet gorget; metallic green above; white-spotted underparts; 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
Bronze-tailed Thornbill
铜色金刚尾蜂鸟 (Chalcostigma heteropogon)，体长约13厘米。雄鸟喉部闪铜绿色，上体绿色，尾长，外侧尾羽带紫色。分布于委内瑞拉和哥伦比亚的安第斯山脉北段高海拔地带。以花蜜为主食，也捕食昆虫。
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.