Anna's Hummingbird vs Vervain Hummingbird
Calypte anna 比較対象 Mellisuga minima
Side-by-Side Comparison
| 属性 | Anna's Hummingbird | Vervain Hummingbird |
|---|---|---|
| 学名 | Calypte anna | Mellisuga minima |
| 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) | 7.3 cm (2.9 in) |
| 体重 | 4.3 g (0.15 oz) | 2.174 g (0.08 oz) |
| 食性 | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Feeds on floral nectar in forest edges and gardens of Jamaica and Hispaniola. Supplements with … |
| 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.
Vervain Hummingbird
Harsh, nasal chatter with emphatic rhythm; rough buzzy notes delivered rapidly with coarse texture from perch.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Vervain Hummingbird
Endemic to Jamaica and Hispaniola in the Caribbean. Resident in gardens, forest edges, and lowland to montane habitats.
保全状況
Anna's Hummingbird
Vervain 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
Vervain Hummingbird
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.
Vervain Hummingbird
ジャマイカとイスパニョーラ島に生息するベルベットハミングバード。体長5〜6cm。世界最小のハチドリの一つ。緑色の体で花の蜜を主食とする。低危険種。