Anna's Hummingbird vs Blue-tufted Starthroat
Calypte anna 比較対象 Heliomaster furcifer
Side-by-Side Comparison
| 属性 | Anna's Hummingbird | Blue-tufted Starthroat |
|---|---|---|
| 学名 | Calypte anna | Heliomaster furcifer |
| 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) | 10.8 cm (4.3 in) |
| 体重 | 4.3 g (0.15 oz) | 5.7 g (0.20 oz) |
| 食性 | Nectar, small insects, and tree sap. Visits a wide variety of native and ornamental flowering … | Nectarivore of open Argentine and Bolivian habitats; visits diverse shrub flowers. Catches small insects in … |
| 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.
Blue-tufted Starthroat
Buzzy, insect-like trill with rapid modulation; high-frequency buzz sustained briefly then repeated after pause.
Geographic Range & Migration
Anna's Hummingbird
Western North America from southern British Columbia along the Pacific coast to Baja California. Range has expanded northward.
Blue-tufted Starthroat
Found from Bolivia and Brazil south to Argentina and Uruguay in open woodland and scrub. Sea level to 1,500 m.
保全状況
Anna's Hummingbird
Blue-tufted Starthroat
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
Blue-tufted Starthroat
Sparkling-tailed Hummingbird: males with brilliant violet gorget; metallic bronze-green; sparkling tail; females green above; spotted
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.
Blue-tufted Starthroat
ブラジル南部からアルゼンチン北部にかけての南アメリカ南部の低地・開けた林・草地・農地に生息する中型ハチドリ（体長11〜12 cm）。雄は青紫に輝く喉と叉状の尾を持つ。農地・林縁に適応した蜜食性。