Blue-tufted Starthroat vs Ruby-throated Hummingbird
Heliomaster furcifer 比較対象 Archilochus colubris
Side-by-Side Comparison
| 属性 | Blue-tufted Starthroat | Ruby-throated Hummingbird |
|---|---|---|
| 学名 | Heliomaster furcifer | Archilochus colubris |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | 8.5 cm (3.3 in) |
| 翼開長 | 10.8 cm (4.3 in) | 11.0 cm (4.3 in) |
| 体重 | 5.7 g (0.20 oz) | 3.1 g (0.11 oz) |
| 食性 | Nectarivore of open Argentine and Bolivian habitats; visits diverse shrub flowers. Catches small insects in … | Nectar from tubular flowers, supplemented with small insects and spiders for protein. Feeds at over … |
| 一腹卵数 | 2 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Ruby-throated Hummingbird
Deciduous and mixed forests, woodland edges, gardens, and parks with flowering plants. Migrates across the Gulf of Mexico.
Song & Call Comparison
Blue-tufted Starthroat
Buzzy, insect-like trill with rapid modulation; high-frequency buzz sustained briefly then repeated after pause.
Ruby-throated Hummingbird
Soft, high-pitched chattering and twittering 'chee-dit'. Also produces a thin 'tik' call in flight. Wing beats create an audible high-pitched humming buzz during hovering.
Geographic Range & Migration
Blue-tufted Starthroat
Found from Bolivia and Brazil south to Argentina and Uruguay in open woodland and scrub. Sea level to 1,500 m.
Ruby-throated Hummingbird
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
保全状況
Blue-tufted Starthroat
Ruby-throated Hummingbird
How to Tell Them Apart
Blue-tufted Starthroat
Sparkling-tailed Hummingbird: males with brilliant violet gorget; metallic bronze-green; sparkling tail; females green above; spotted
Ruby-throated Hummingbird
Metallic green upperparts and greyish-white underparts. Males have a brilliant iridescent ruby-red gorget that appears black in poor light. Females lack the gorget.
Long, straight, thin black bill adapted for probing flowers
About These Birds
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。
Ruby-throated Hummingbird
The ruby-throated hummingbird is the only breeding hummingbird in eastern North America. These tiny birds beat their wings about 53 times per second and can fly backwards, sideways, and even briefly upside down. They make an extraordinary non-stop 800 km crossing of the Gulf of Mexico during migration.