Anna's Hummingbird vs Mexican Woodnymph
Calypte anna 比較対象 Eupherusa ridgwayi
Side-by-Side Comparison
| 属性 | Anna's Hummingbird | Mexican Woodnymph |
|---|---|---|
| 学名 | Calypte anna | Eupherusa ridgwayi |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Vulnerable |
| 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) | 3.733333333333333 g (0.13 oz) |
| 食性 | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore visiting diverse flowering plants; supplements the high-sugar nectar diet with small insects and spiders … |
| 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.
Mexican Woodnymph
Rapid, light twittering cascade; high airy notes tumbling quickly in animated sequence above flowers.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Mexican Woodnymph
Endemic to the Pacific lowlands of western Mexico from Nayarit to Guerrero. Resident in tropical deciduous forest.
保全状況
Anna's Hummingbird
Mexican Woodnymph
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
Mexican Woodnymph
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.
Mexican Woodnymph
メキシコ太平洋岸の低地に生息するハチドリで、赤褐色の腹部が特徴。