Anna's Hummingbird vs Glittering-throated Emerald
Calypte anna 对比 Chionomesa fimbriata
Side-by-Side Comparison
| 属性 | Anna's Hummingbird | Glittering-throated Emerald |
|---|---|---|
| 学名 | Calypte anna | Chionomesa fimbriata |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 10.0 cm (3.9 in) | — |
| 翼展 | 12.0 cm (4.7 in) | — |
| 体重 | 4.3 g (0.15 oz) | 4.766666666666667 g (0.17 oz) |
| 食性 | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore probing tubular flowers in humid forest. Supplements nectar diet with small insects and spiders … |
| 产卵数 | 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.
Glittering-throated Emerald
Buzzy, high-pitched insect-like trill; sustained rapid vibration with minimal melodic content 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.
Glittering-throated Emerald
Widely distributed from Colombia through Amazonia to Brazil, Bolivia, and Argentina. Resident in varied habitats.
保护状况
Anna's Hummingbird
Glittering-throated Emerald
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
Glittering-throated Emerald
Green Coucal: greenish iridescent overall; rufous wings; pale buff below; long graduated tail; red eye; greenish gloss distinctive
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.
Glittering-throated Emerald
翠腹叫声蜂鸟 (Chionomesa fimbriata)，体长约12厘米。上体闪亮绿色，下体白色，翅膀带紫色，尾短叉形。分布于南美洲北部低地，包括委内瑞拉、圭亚那和巴西北部。以花蜜和昆虫为食。