Rufous-shafted Woodstar vs Allen's Hummingbird
Chaetocercus jourdanii 比較対象 Selasphorus sasin
Side-by-Side Comparison
| 属性 | Rufous-shafted Woodstar | Allen's Hummingbird |
|---|---|---|
| 学名 | Chaetocercus jourdanii | Selasphorus sasin |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 7.0 cm (2.8 in) | 8.1 cm (3.2 in) |
| 体重 | 3.26 g (0.11 oz) | 3.1500000000000004 g (0.11 oz) |
| 食性 | Nectarivore of Trinidad and northern South America, hovering at bromeliads and Heliconia. Supplements diet with … | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … |
| 一腹卵数 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Rufous-shafted Woodstar
Deep, resonant single note with striking boldness; powerful tone ringing out clearly from exposed prominent perch.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
Geographic Range & Migration
Rufous-shafted Woodstar
Found in Andean highlands from Venezuela to Trinidad at 500-2,500 m elevation. Resident in montane forest edges and gardens.
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
保全状況
Rufous-shafted Woodstar
Allen's Hummingbird
How to Tell Them Apart
Rufous-shafted Woodstar
Calliope Hummingbird (endemic): tiny; males with glittering magenta gorget; metallic green above; females plain green above; spotted
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
About These Birds
Rufous-shafted Woodstar
ベネズエラからトリニダードのアンデス高地（500〜2,500 m）の微小ハチドリ（7〜8 cm）。雄は飛翔中に見える赤褐色の翼先端と紫色の喉を持つ。林縁・庭園で花蜜を吸う。
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.