Allen's Hummingbird vs Black-billed Streamertail
Selasphorus sasin 비교 대상 Trochilus scitulus
Side-by-Side Comparison
| 속성 | Allen's Hummingbird | Black-billed Streamertail |
|---|---|---|
| 학명 | Selasphorus sasin | Trochilus scitulus |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Trochilidae | Trochilidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 8.1 cm (3.2 in) | 13.0 cm (5.1 in) |
| 체중 | 3.1500000000000004 g (0.11 oz) | 4.7 g (0.17 oz) |
| 식성 | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … | Nectarivore probing tubular flowers in humid forest. Supplements nectar diet with small insects and spiders … |
| 산란 수 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Black-billed Streamertail
Buzzy, insect-like sustained trill; continuous high-frequency vibration with rapid modulation near nectar flowers.
Geographic Range & Migration
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
Black-billed Streamertail
Endemic to the eastern Blue Mountains of Jamaica. Restricted to montane forest. Sometimes treated as subspecies.
보전 상태
Allen's Hummingbird
Black-billed Streamertail
How to Tell Them Apart
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
Black-billed Streamertail
Black-faced Coucal: glossy black head; rufous-brown wings; black underparts; red eye; long dark tail; sexually similar plumage
About These Birds
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.
Black-billed Streamertail
자메이카 동부 블루 마운틴에 고유한 벌새로 몸 9~10cm에 수컷은 긴 꼬리 장식 깃털을 가집니다. 수컷은 초록색 몸통과 긴 검은 꼬리 장식 깃털이 특징이며, 제한된 분포 범위를 가집니다.