Anna's Hummingbird vs Violet-bellied Hummingbird
Calypte anna 比較対象 Chlorestes julie
Side-by-Side Comparison
| 属性 | Anna's Hummingbird | Violet-bellied Hummingbird |
|---|---|---|
| 学名 | Calypte anna | Chlorestes julie |
| 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) | — |
| 体重 | 4.3 g (0.15 oz) | 3.1759999999999997 g (0.11 oz) |
| 食性 | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Hovering nectarivore of lowland and montane forest, probing Heliconia and garden flowers. Supplements with insects … |
| 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.
Violet-bellied Hummingbird
Thin, high-pitched twittering barely perceptible; delicate notes cascading gently near high-elevation 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.
Violet-bellied Hummingbird
Found in humid lowland forests from Honduras to Ecuador. Resident in forest undergrowth and edges.
保全状況
Anna's Hummingbird
Violet-bellied Hummingbird
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
Violet-bellied Hummingbird
Verreaux's Coua: rich rufous below; olive-brown above; brilliant bare blue-green facial skin; white-tipped tail; Madagascar endemic
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.
Violet-bellied Hummingbird
ホンジュラスからエクアドルの湿潤低地林に生息する小型ハチドリ（7〜8 cm）。雄は紫青色の腹部斑を持つ。緑色の羽衣。林床下層・林縁で花蜜を吸う。目立たない種。