Anna's Hummingbird vs Blue-capped Puffleg
Calypte anna 比較対象 Eriocnemis glaucopoides
Side-by-Side Comparison
| 属性 | Anna's Hummingbird | Blue-capped Puffleg |
|---|---|---|
| 学名 | Calypte anna | Eriocnemis glaucopoides |
| 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) | 10.1 cm (4.0 in) |
| 体重 | 4.3 g (0.15 oz) | 3.75 g (0.13 oz) |
| 食性 | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of Colombian Andes; fluffy leg tufts show during hover at Ericaceae blooms. Gleans small … |
| 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.
Blue-capped Puffleg
Buzzy, high-pitched trill barely audible; rapid soft vibration with insect-like quality during hovering near blossoms.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Blue-capped Puffleg
Endemic to Argentina and adjacent Bolivia in high Andean scrub and puna at 2,600–4,200 m elevation.
保全状況
Anna's Hummingbird
Blue-capped Puffleg
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
Blue-capped Puffleg
Velvet-browed Brilliant: males with iridescent purple gorget; velvety black brow; metallic bronze-green above; females green with spots
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.
Blue-capped Puffleg
ボリビアと北西アルゼンチンに生息するハチドリで、青みがかった冠羽が特徴。