Anna's Hummingbird vs Green-bellied Hummingbird
Calypte anna 对比 Saucerottia viridigaster
Side-by-Side Comparison
| 属性 | Anna's Hummingbird | Green-bellied Hummingbird |
|---|---|---|
| 学名 | Calypte anna | Saucerottia viridigaster |
| 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) | 4.366666666666666 g (0.15 oz) |
| 食性 | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of Andean foothills in Colombia and Venezuela; feeds at bromeliads and supplements with arthropods. |
| 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.
Green-bellied Hummingbird
Rough, grating chatter with coarse texture; harsh series of notes delivered emphatically during territorial encounter.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Green-bellied Hummingbird
Found in Andean cloud forests from Colombia to Venezuela at 500-2,000 m. Resident in montane forest edges.
保护状况
Anna's Hummingbird
Green-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
Green-bellied Hummingbird
Shining Bronze Coucal: glossy purple-blue sheen; chestnut wings; dark graduated tail; red eye; brilliant iridescence distinguishes it
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.
Green-bellied Hummingbird
A medium-sized hummingbird (9-10 cm) found in Andean cloud forests from Colombia to Venezuela at 500-2,000 m. Green plumage with green belly. Nectarivore of montane forest edges and gardens. Taxonomy complex with several subspecies.