Anna's Hummingbird vs Lesser Violetear
Calypte anna 对比 Colibri cyanotus
Side-by-Side Comparison
| 属性 | Anna's Hummingbird | Lesser Violetear |
|---|---|---|
| 学名 | Calypte anna | Colibri cyanotus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Not Evaluated |
| 体长 | 10.0 cm (3.9 in) | — |
| 翼展 | 12.0 cm (4.7 in) | — |
| 体重 | 4.3 g (0.15 oz) | 4.866666666666667 g (0.17 oz) |
| 食性 | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore highly adaptable to disturbed habitats; visits Lantana, Salvia, and Ericaceae flowers. Supplements with small … |
| 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.
Lesser Violetear
Rapid, light chips in cheerful sequence; bright staccato notes with buoyant quality delivered during active foraging.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Lesser Violetear
Found in Andean highlands from Venezuela south through Colombia, Ecuador, Peru, and Bolivia. 1,000–2,800 m elevation.
保护状况
Anna's Hummingbird
Lesser Violetear
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
Lesser Violetear
Violet-headed Hummingbird: violet-blue gorget and head; metallic green above; white belly; cinnamon flanks; females duller with spotted throat
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.
Lesser Violetear
小紫耳蜂鸟(Colibri cyanotus)是一种体长10-11厘米的中型蜂鸟，具有鲜亮绿色羽毛和蓝紫色耳斑。分布于从中美洲到委内瑞拉和玻利维亚的安第斯高地。以花蜜为食，栖息于云雾林和高海拔花园中。