Amethyst-throated Mountain-gem vs Grey-bellied Comet
Lampornis amethystinus 比較対象 Taphrolesbia griseiventris
Side-by-Side Comparison
| 属性 | Amethyst-throated Mountain-gem | Grey-bellied Comet |
|---|---|---|
| 学名 | Lampornis amethystinus | Taphrolesbia griseiventris |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Endangered |
| 体長 | — | — |
| 翼開長 | 13.1 cm (5.2 in) | 15.6 cm (6.1 in) |
| 体重 | 5.6000000000000005 g (0.20 oz) | 8.94 g (0.32 oz) |
| 食性 | Nectarivore of Mexican and Central American montane pine-oak forest; visits Ericaceae and Salvia. Gleans arthropods. | Nectarivore of Peruvian dry inter-Andean valleys; visits sparse Chuquiraga blooms. Supplements with small insects. |
| 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.
Grey-bellied Comet
Crisp, musical chip with bright quality; single sharp note ringing cleanly, repeated at irregular but frequent intervals.
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.
Grey-bellied Comet
Endemic to the western Andean slope in Peru in arid scrub and intermontane valleys. 2,400–3,800 m. Highly restricted range.
保全状況
Amethyst-throated Mountain-gem
Grey-bellied Comet
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
Grey-bellied Comet
White-bellied Woodstar: males with glittering violet gorget; metallic green above; white postocular stripe; females green above; spots
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.
Grey-bellied Comet
A medium-sized hummingbird (15-18 cm including long tail) endemic to a small range in the Andes of Peru at 3,000-3,500 m. Grey belly and long, forked tail. Nectarivore. Classified as Endangered due to an extremely restricted range. One of the rarest Andean hummingbirds.