Plain-capped Starthroat vs Ruby-throated Hummingbird
Heliomaster constantii 对比 Archilochus colubris
Side-by-Side Comparison
| 属性 | Plain-capped Starthroat | Ruby-throated Hummingbird |
|---|---|---|
| 学名 | Heliomaster constantii | Archilochus colubris |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | 8.5 cm (3.3 in) |
| 翼展 | 12.5 cm (4.9 in) | 11.0 cm (4.3 in) |
| 体重 | 7.375 g (0.26 oz) | 3.1 g (0.11 oz) |
| 食性 | Nectarivore of Mexican and Central American dry and semi-open habitats. Visits large flowers; catches insects … | Nectar from tubular flowers, supplemented with small insects and spiders for protein. Feeds at over … |
| 产卵数 | -- | 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
Plain-capped Starthroat
High, thin twittering barely audible; delicate cascade of minute notes, poorly documented vocal repertoire.
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
Plain-capped Starthroat
Found from northwestern Mexico south through Central America to northwestern Costa Rica in dry forest. Sea level to 1,800 m.
Ruby-throated Hummingbird
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
保护状况
Plain-capped Starthroat
Ruby-throated Hummingbird
How to Tell Them Apart
Plain-capped Starthroat
Peruvian Sheartail (alt): males with glittering violet gorget; metallic green above; white underparts; 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
Plain-capped Starthroat
普通星蜂鸟分布于墨西哥至哥斯达黎加的中美洲干旱林和开阔地带。雄鸟喉部具闪光紫色，体型较大，喙长直。以花蜜为主食，常在高大的花序上觅食。雄鸟有高调的求偶展示，鸣声响亮。
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.