Allen's Hummingbird vs Band-tailed Barbthroat
Selasphorus sasin 比較対象 Threnetes ruckeri
Side-by-Side Comparison
| 属性 | Allen's Hummingbird | Band-tailed Barbthroat |
|---|---|---|
| 学名 | Selasphorus sasin | Threnetes ruckeri |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 8.1 cm (3.2 in) | 11.3 cm (4.4 in) |
| 体重 | 3.1500000000000004 g (0.11 oz) | 6.0 g (0.21 oz) |
| 食性 | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … | Nectarivore specialising in long curved tubular flowers; also hawks small flies and midges near forest … |
| 一腹卵数 | 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.
Band-tailed Barbthroat
Crisp, emphatic single chip repeated at intervals; clear staccato note with sharp attack and brief resonant tail.
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.
Band-tailed Barbthroat
Found from southern Mexico through Central America to western Colombia and northwestern Venezuela. Resident in lowland forest and shaded streams.
保全状況
Allen's Hummingbird
Band-tailed Barbthroat
How to Tell Them Apart
Allen's Hummingbird
Band-tailed Barbthroat
Bronze-green upperparts; pale buff underparts with dark throat; broad black-and-white banded tail with rufous base; blackish chin and throat with pale malar stripe; Central American species with boldly banded tail …
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.
Band-tailed Barbthroat
バンドテイルバーブスロートはパナマからエクアドルにかけての熱帯雨林に生息するハチドリです。尾羽の縞模様が特徴的です。