Allen's Hummingbird vs Fork-tailed Woodnymph
Selasphorus sasin 比較対象 Thalurania furcata
Side-by-Side Comparison
| 属性 | Allen's Hummingbird | Fork-tailed Woodnymph |
|---|---|---|
| 学名 | Selasphorus sasin | Thalurania furcata |
| 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) | 10.9 cm (4.3 in) |
| 体重 | 3.1500000000000004 g (0.11 oz) | 4.4 g (0.16 oz) |
| 食性 | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … | Widespread Amazonian nectarivore visiting diverse forest-floor flowers. Supplements with insects and spiders caught in flight. |
| 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.
Fork-tailed Woodnymph
Buzzy, insect-like trill with monotonous quality; sustained rapid vibration with minimal melodic content.
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.
Fork-tailed Woodnymph
Widely distributed in humid forests from Venezuela through Amazonia to Brazil, Bolivia, and Argentina. Resident.
保全状況
Allen's Hummingbird
Fork-tailed Woodnymph
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
Fork-tailed Woodnymph
Blue Bustard: males with slate-blue neck and breast; brown-vermiculated above; white belly; females brown above; pale below
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.
Fork-tailed Woodnymph
フォーキドウッドニンフは南米の熱帯雨林に広く分布するハチドリです。雄は深い青緑色の羽毛と二股に分かれた尾羽が特徴です。