White-throated Mountain-gem vs Allen's Hummingbird
Lampornis castaneoventris 비교 대상 Selasphorus sasin
Side-by-Side Comparison
| 속성 | White-throated Mountain-gem | Allen's Hummingbird |
|---|---|---|
| 학명 | Lampornis castaneoventris | Selasphorus sasin |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Trochilidae | Trochilidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 12.2 cm (4.8 in) | 8.1 cm (3.2 in) |
| 체중 | 5.58 g (0.20 oz) | 3.1500000000000004 g (0.11 oz) |
| 식성 | Nectarivore of Costa Rican highlands; visits diverse cloud-forest flowers. Supplements diet with small insects and … | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … |
| 산란 수 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
White-throated Mountain-gem
Thin, reedy trill with wavering quality; soft rapid notes with gentle tremolo effect given from cover.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
White-throated Mountain-gem
Endemic to the highlands of Costa Rica and western Panama in cloud forest. 1,200–2,800 m. Resident.
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
보전 상태
White-throated Mountain-gem
Allen's Hummingbird
How to Tell Them Apart
White-throated Mountain-gem
Grey-breasted Sabrewing: males with iridescent violet gorget; metallic green above; gray breast; females green above; spotted below
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
White-throated Mountain-gem
밤색배벌새는 중앙아메리카 코스타리카 고지대에 서식하는 벌새이다. 수컷은 밤색 배와 자주색 목 반점이 특징이며 높은 고도의 삼림에서 서식한다. 꽃의 꿀을 먹으며 코스타리카 고산 지대에 주로 분포한다.
Allen's Hummingbird
A small hummingbird (8-9 cm) breeding along the Pacific coast from Oregon to southern California. Males have an orange-red throat and rufous flanks. Closely related to Rufous Hummingbird. Partial migrant; some populations resident on Channel Islands. Named after Thomas Allen.