Anna's Hummingbird vs Beautiful Hummingbird
Calypte anna 比較対象 Calothorax pulcher
Side-by-Side Comparison
| 属性 | Anna's Hummingbird | Beautiful Hummingbird |
|---|---|---|
| 学名 | Calypte anna | Calothorax pulcher |
| 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) | 7.4 cm (2.9 in) |
| 体重 | 4.3 g (0.15 oz) | 2.6575 g (0.09 oz) |
| 食性 | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Feeds on nectar from dry-forest flowers in Oaxaca, hovering at low scrub blooms. Catches gnats … |
| 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.
Beautiful Hummingbird
Soft, pure whistle with plaintive character; gentle wavering tone fading gently in dense cloud forest shade.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Beautiful Hummingbird
Endemic to southwestern Mexico in Guerrero and Oaxaca. Resident in dry forest and thorn scrub at 600-2,000 m elevation.
保全状況
Anna's Hummingbird
Beautiful 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
Beautiful Hummingbird
Broad-billed Hummingbird: males with brilliant sapphire-blue gorget; metallic green above; red-orange bill; females green above; 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.
Beautiful Hummingbird
体長9〜10cmのマゼンタの喉飾りを持つハチドリ。メキシコ南西部（ゲレーロ・オアハカ）の固有種。