Anna's Hummingbird vs Little Hermit
Calypte anna 比較対象 Phaethornis longuemareus
Side-by-Side Comparison
| 属性 | Anna's Hummingbird | Little Hermit |
|---|---|---|
| 学名 | Calypte anna | Phaethornis longuemareus |
| 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) | 8.6 cm (3.4 in) |
| 体重 | 4.3 g (0.15 oz) | 3.3 g (0.12 oz) |
| 食性 | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Primarily nectar-feeding; uses exceptionally curved bill to access heliconia blossoms; supplements with small insects. |
| 一腹卵数 | 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.
Little Hermit
Loud, ringing whistle with bold projection; clear single-pitch call carrying impressively across open montane grassland.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Little Hermit
Found from Trinidad and northern Venezuela west through much of Amazonia to Bolivia. Resident in lowland forest undergrowth near streams.
保全状況
Anna's Hummingbird
Little Hermit
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
Little Hermit
Tiny; bronze-green upperparts with rufous-buff rump band; buff underparts; pale buff supercilium and malar stripe bordering dark face mask; white-tipped elongated central tail feathers; Trinidad and Venezuela species.
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.
Little Hermit
カリブ海の島々（トリニダード、グレナダなど）とベネズエラに生息する小型のハチドリ。薄暗い林内に生息し、長い嘴で花蜜を採取する。