Anna's Hummingbird vs Velvet-purple Coronet
Calypte anna 比較対象 Boissonneaua jardini
Side-by-Side Comparison
| 属性 | Anna's Hummingbird | Velvet-purple Coronet |
|---|---|---|
| 学名 | Calypte anna | Boissonneaua jardini |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 10.0 cm (3.9 in) | — |
| 翼開長 | 12.0 cm (4.7 in) | 15.0 cm (5.9 in) |
| 体重 | 4.3 g (0.15 oz) | 9.4 g (0.33 oz) |
| 食性 | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of Colombian Pacific slope cloud forest; visits Ericaceae and Heliconia. Supplements with small arthropods. |
| 一腹卵数 | 2 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Anna's Hummingbird
Chaparral, coastal sage scrub, gardens, parks, and open woodland along the Pacific coast. One of few hummingbirds not fully migratory.
Song & Call Comparison
Anna's Hummingbird
Male produces a complex, scratchy song with buzzy 'dzzzzt' notes. Gives a nasal 'chee-chee-chee'. Males sing year-round, even in winter; one of few hummingbirds with true song.
Velvet-purple Coronet
Harsh, grating screech with urgent tone; sudden loud rough call given sharply during aerial chase encounter.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Velvet-purple Coronet
Found on the Pacific slope of the Andes in Colombia and northwestern Ecuador in cloud forest. 500–1,800 m.
保全状況
Anna's Hummingbird
Velvet-purple Coronet
How to Tell Them Apart
Anna's Hummingbird
Metallic bronze-green upperparts. Males have an iridescent rose-red crown and gorget. Females have green upperparts with grey underparts and a small red gorget patch.
Medium-length, straight, thin black bill
Velvet-purple Coronet
Rainbow Starfrontlet: males with brilliant magenta-orange gorget; metallic green above; white belly; females green above; spotted below
About These Birds
Anna's Hummingbird
Anna's hummingbird is the most common hummingbird along the Pacific coast and one of only three species resident in the United States year-round. Males perform spectacular dive displays, plummeting from 40 meters and pulling up with a loud chirp produced by tail feathers. Their body temperature can drop to near ambient at night to conserve energy.
Velvet-purple Coronet
コロンビア西部とエクアドルの雲霧林の標高1,200〜2,400mに生息する中型のハチドリ（11〜12cm）。雄は緑色の光沢を帯びた暗いビロード状の紫色の羽毛を持つ。チョコ雲霧林の蜜食者。際立った暗色の羽毛を持つハチドリ。