Amethyst-throated Mountain-gem vs Green-headed Hillstar
Lampornis amethystinus 比較対象 Oreotrochilus stolzmanni
Side-by-Side Comparison
| 属性 | Amethyst-throated Mountain-gem | Green-headed Hillstar |
|---|---|---|
| 学名 | Lampornis amethystinus | Oreotrochilus stolzmanni |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 13.1 cm (5.2 in) | 14.5 cm (5.7 in) |
| 体重 | 5.6000000000000005 g (0.20 oz) | 8.016666666666667 g (0.28 oz) |
| 食性 | Nectarivore of Mexican and Central American montane pine-oak forest; visits Ericaceae and Salvia. Gleans arthropods. | Nectarivore of Peruvian high puna; visits Chuquiraga and Lupinus blooms. Supplements with small flies and … |
| 一腹卵数 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Amethyst-throated Mountain-gem
Pure, sustained flute-like tone held steady; single clear note with barely perceptible vibrato in tropical shade.
Green-headed Hillstar
Soft, pure descending whistle; gentle single note curving downward smoothly, warm and musical in quiet forest.
Geographic Range & Migration
Amethyst-throated Mountain-gem
Found in montane forest from Mexico south through Guatemala and Honduras to El Salvador. 1,000–3,200 m.
Green-headed Hillstar
Found on the western Andean slope and coastal desert hills of Peru at 1,500–3,600 m elevation.
保全状況
Amethyst-throated Mountain-gem
Green-headed Hillstar
How to Tell Them Apart
Amethyst-throated Mountain-gem
Bumblebee Hummingbird: tiny; males with brilliant violet gorget; metallic green above; white underparts; females green above; spotted
Green-headed Hillstar
Purple-collared Woodstar: males with elongated streamer tail; glittering violet gorget; white collar; females shorter tail; green above
About These Birds
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.
Green-headed Hillstar
A medium-sized hummingbird (11-12 cm) found in the Andes of Peru and Ecuador at 2,800-4,200 m. Green plumage with a glittering green hood. Nectarivore of high-altitude shrubs and Puya plants. Closely related to Andean Hillstar. Sometimes considered conspecific.