Anna's Hummingbird vs Violet-capped Woodnymph
Calypte anna 比較対象 Thalurania glaucopis
Side-by-Side Comparison
| 属性 | Anna's Hummingbird | Violet-capped Woodnymph |
|---|---|---|
| 学名 | Calypte anna | Thalurania glaucopis |
| 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) | 11.0 cm (4.3 in) |
| 体重 | 4.3 g (0.15 oz) | 4.78 g (0.17 oz) |
| 食性 | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of South Brazilian forest, visiting bromeliads and Heliconia. Supplements with insects and spiders. |
| 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.
Violet-capped Woodnymph
Deep, hollow churr with resonant character; prolonged buzzing sound vibrating softly through tropical canopy.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Violet-capped Woodnymph
Found in the Atlantic Forest of southeastern Brazil, eastern Paraguay, and northeastern Argentina. Resident.
保全状況
Anna's Hummingbird
Violet-capped 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
Violet-capped 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.
Violet-capped Woodnymph
バイオレットクラウンドウッドニンフはブラジル東部の大西洋岸森林に生息するハチドリです。雄は紫がかった頭部と緑の胸部が特徴です。