Black-bellied Thorntail vs Amethyst-throated Mountain-gem
Discosura langsdorffi 비교 대상 Lampornis amethystinus
Side-by-Side Comparison
| 속성 | Black-bellied Thorntail | Amethyst-throated Mountain-gem |
|---|---|---|
| 학명 | Discosura langsdorffi | Lampornis amethystinus |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Trochilidae | Trochilidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 7.0 cm (2.8 in) | 13.1 cm (5.2 in) |
| 체중 | 3.2 g (0.11 oz) | 5.6000000000000005 g (0.20 oz) |
| 식성 | Nectarivore visiting diverse canopy flowers in humid Amazonian forest. Takes small arthropods in aerial hover-gleaning. | Nectarivore of Mexican and Central American montane pine-oak forest; visits Ericaceae and Salvia. Gleans arthropods. |
| 산란 수 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Black-bellied Thorntail
Deep, hollow churring with resonant character; prolonged low buzzing sound vibrating persistently through dense foliage.
Amethyst-throated Mountain-gem
Pure, sustained flute-like tone held steady; single clear note with barely perceptible vibrato in tropical shade.
Geographic Range & Migration
Black-bellied Thorntail
Found in lowland Amazonian forest from southeastern Colombia south through Ecuador and Peru to Bolivia. 100–600 m.
Amethyst-throated Mountain-gem
Found in montane forest from Mexico south through Guatemala and Honduras to El Salvador. 1,000–3,200 m.
보전 상태
Black-bellied Thorntail
Amethyst-throated Mountain-gem
How to Tell Them Apart
Black-bellied Thorntail
Red-tailed Comet: males with glittering green gorget; brilliant coppery-bronze crown; metallic green back; reddish tail; females duller
Amethyst-throated Mountain-gem
Bumblebee Hummingbird: tiny; males with brilliant violet gorget; metallic green above; white underparts; females green above; spotted
About These Birds
Black-bellied Thorntail
수컷은 어두운 배와 라켓 끝이 있는 길고 전선 같은 외부 꼬리 깃털을 가진 7–8cm(그외 꼬리 깃털 포함) 소형 벌새로 콜롬비아 동부에서 아마존을 거쳐 볼리비아·브라질까지 저지림에 서식한다. 삼림 수관부와 가장자리에서 꿀을 먹는다.
Amethyst-throated Mountain-gem
자수정목벌새는 멕시코 산악 지대에 서식하는 아름다운 벌새이다. 수컷은 자수정색의 반짝이는 목 깃털이 특징이며 녹색 등과 조화를 이룬다. 고산대의 꽃들 특히 자주색 꽃의 꿀을 좋아하며 빠른 날갯짓으로 정지 비행을 한다.