Venezuelan Sylph vs Amethyst-throated Mountain-gem
Aglaiocercus berlepschi 比較対象 Lampornis amethystinus
Side-by-Side Comparison
| 属性 | Venezuelan Sylph | Amethyst-throated Mountain-gem |
|---|---|---|
| 学名 | Aglaiocercus berlepschi | Lampornis amethystinus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Vulnerable | Least Concern |
| 体長 | — | — |
| 翼開長 | 11.9 cm (4.7 in) | 13.1 cm (5.2 in) |
| 体重 | 5.0 g (0.18 oz) | 5.6000000000000005 g (0.20 oz) |
| 食性 | Nectarivore of Venezuelan Andes cloud forest; visits Ericaceae and Fuchsia blooms. Takes small insects and … | Nectarivore of Mexican and Central American montane pine-oak forest; visits Ericaceae and Salvia. Gleans arthropods. |
| 一腹卵数 | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Venezuelan Sylph
Rough, buzzy chatter with energetic rhythm; coarse notes delivered rapidly with distinctive raw texture near nest.
Amethyst-throated Mountain-gem
Pure, sustained flute-like tone held steady; single clear note with barely perceptible vibrato in tropical shade.
Geographic Range & Migration
Venezuelan Sylph
Endemic to the coastal mountains of north-central Venezuela in cloud forest. 1,200–2,400 m. Resident.
Amethyst-throated Mountain-gem
Found in montane forest from Mexico south through Guatemala and Honduras to El Salvador. 1,000–3,200 m.
保全状況
Venezuelan Sylph
Amethyst-throated Mountain-gem
How to Tell Them Apart
Venezuelan Sylph
Bahama Woodstar: tiny; males with glittering magenta gorget; metallic green above; white underparts; females green above; spotted below
Amethyst-throated Mountain-gem
Bumblebee Hummingbird: tiny; males with brilliant violet gorget; metallic green above; white underparts; females green above; spotted
About These Birds
Venezuelan Sylph
A spectacular hummingbird closely related to Long-tailed Sylph, endemic to the coastal mountains of northern Venezuela. Males have long violet-blue tail streamers. Nectarivore of cloud forest. Sometimes considered a subspecies of Long-tailed Sylph. Very limited range.
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.