Anna's Hummingbird vs Magenta-throated Woodstar
Calypte anna 比較対象 Philodice bryantae
Side-by-Side Comparison
| 属性 | Anna's Hummingbird | Magenta-throated Woodstar |
|---|---|---|
| 学名 | Calypte anna | Philodice bryantae |
| 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) | — |
| 体重 | 4.3 g (0.15 oz) | 3.4 g (0.12 oz) |
| 食性 | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore hovering at tubular blossoms in highland forest clearings. Takes small flies and spiders to … |
| 一腹卵数 | 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.
Magenta-throated Woodstar
Thin, sibilant twittering with silvery quality; high airy notes cascading softly near flowering shrubs.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Magenta-throated Woodstar
Endemic to the highlands of Costa Rica and western Panama at 1,000-2,200 m elevation. Resident in cloud forest edges and gardens.
保全状況
Anna's Hummingbird
Magenta-throated Woodstar
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
Magenta-throated Woodstar
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.
Magenta-throated Woodstar
コスタリカとパナマの太平洋低地に限定して生息する希少なハチドリで、Magentaスロートハチドリとも呼ばれる。特定の花を縄張りとして防衛する。