Anna's Hummingbird vs Purple-crowned Fairy
Calypte anna 对比 Heliothryx barroti
Side-by-Side Comparison
| 属性 | Anna's Hummingbird | Purple-crowned Fairy |
|---|---|---|
| 学名 | Calypte anna | Heliothryx barroti |
| 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) | 12.8 cm (5.0 in) |
| 体重 | 4.3 g (0.15 oz) | 5.48 g (0.19 oz) |
| 食性 | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore specializing in high canopy flowers and bromeliads. Pierces flower bases to rob nectar; supplements … |
| 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.
Purple-crowned Fairy
Buzzy, insect-like trill sustained monotonously; continuous high-frequency vibration with little dynamic range throughout.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Purple-crowned Fairy
Found in lowland humid forest from southern Mexico through Central America to western Ecuador and western Colombia. 0–800 m.
保护状况
Anna's Hummingbird
Purple-crowned Fairy
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
Purple-crowned Fairy
White-tailed Goldenthroat: males with glittering golden-green gorget; metallic green above; white-tipped tail; females green with spotted below
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.
Purple-crowned Fairy
紫冠仙蜂鸟分布于中美洲至哥伦比亚和厄瓜多尔的热带低地雨林。雄鸟头顶具紫色光泽，体羽翠绿，腹部白色，尾长分叉。以花蜜为主食，也取食昆虫。栖息于森林冠层，飞行时尾羽随风飘曳。