Plain-capped Starthroat vs Amethyst-throated Mountain-gem
Heliomaster constantii 对比 Lampornis amethystinus
Side-by-Side Comparison
| 属性 | Plain-capped Starthroat | Amethyst-throated Mountain-gem |
|---|---|---|
| 学名 | Heliomaster constantii | Lampornis amethystinus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 12.5 cm (4.9 in) | 13.1 cm (5.2 in) |
| 体重 | 7.375 g (0.26 oz) | 5.6000000000000005 g (0.20 oz) |
| 食性 | Nectarivore of Mexican and Central American dry and semi-open habitats. Visits large flowers; catches insects … | 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
Plain-capped Starthroat
High, thin twittering barely audible; delicate cascade of minute notes, poorly documented vocal repertoire.
Amethyst-throated Mountain-gem
Pure, sustained flute-like tone held steady; single clear note with barely perceptible vibrato in tropical shade.
Geographic Range & Migration
Plain-capped Starthroat
Found from northwestern Mexico south through Central America to northwestern Costa Rica in dry forest. Sea level to 1,800 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
Plain-capped Starthroat
Amethyst-throated Mountain-gem
How to Tell Them Apart
Plain-capped Starthroat
Peruvian Sheartail (alt): males with glittering violet gorget; metallic green above; white 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
Plain-capped Starthroat
普通星蜂鸟分布于墨西哥至哥斯达黎加的中美洲干旱林和开阔地带。雄鸟喉部具闪光紫色，体型较大，喙长直。以花蜜为主食，常在高大的花序上觅食。雄鸟有高调的求偶展示，鸣声响亮。
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.