Amethyst-throated Mountain-gem vs Purple-backed Thornbill
Lampornis amethystinus 比較対象 Ramphomicron microrhynchum
Side-by-Side Comparison
| 属性 | Amethyst-throated Mountain-gem | Purple-backed Thornbill |
|---|---|---|
| 学名 | Lampornis amethystinus | Ramphomicron microrhynchum |
| 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) | 10.2 cm (4.0 in) |
| 体重 | 5.6000000000000005 g (0.20 oz) | 3.3 g (0.12 oz) |
| 食性 | Nectarivore of Mexican and Central American montane pine-oak forest; visits Ericaceae and Salvia. Gleans arthropods. | Nectarivore foraging at mossy treeline vegetation and compact Ericaceae 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.
Purple-backed Thornbill
Bright, cheerful twittering with bubbling quality; light rapid notes cascading freely in animated display near flowers.
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.
Purple-backed Thornbill
Widespread in high Andean habitats from Venezuela south through Colombia, Ecuador, Peru, and Bolivia. 2,000–4,400 m.
保全状況
Amethyst-throated Mountain-gem
Purple-backed Thornbill
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
Purple-backed Thornbill
Steely-vented Hummingbird: males with iridescent ruby-red gorget; metallic green above; white postocular stripe; blue-steel tail
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.
Purple-backed Thornbill
A tiny hummingbird (8-9 cm) found in Andean cloud forests from Venezuela to Bolivia at 2,000-3,800 m. Males have iridescent purple back. Tiny, short bill. Nectarivore of high-elevation flowering shrubs. One of the smallest hummingbirds in the Andes.