White-sided Hillstar vs Ruby-throated Hummingbird
Oreotrochilus leucopleurus so với Archilochus colubris
Side-by-Side Comparison
| Thuộc Tính | White-sided Hillstar | Ruby-throated Hummingbird |
|---|---|---|
| Tên Khoa Học | Oreotrochilus leucopleurus | Archilochus colubris |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | 8,5 cm (3.3 in) |
| Chiều Dài Sải Cánh | 13,6 cm (5.4 in) | 11,0 cm (4.3 in) |
| Khối Lượng | 6,6 g (0.23 oz) | 3,1 g (0.11 oz) |
| Chế Độ Ăn | Nectarivore foraging above treeline at sparse Ericaceae and Chuquiraga patches. Supplements with small arthropods. | Nectar from tubular flowers, supplemented with small insects and spiders for protein. Feeds at over … |
| Số Trứng | 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
White-sided Hillstar
Melodic, ascending phrase with hopeful character; smooth pure tones rising steadily in clear musical progression at dawn.
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
White-sided Hillstar
Found in the Andes and Patagonian steppe of Argentina and Chile from 1,000–4,000 m. Partly migratory.
Ruby-throated Hummingbird
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
Tình Trạng Bảo Tồn
White-sided Hillstar
Ruby-throated Hummingbird
How to Tell Them Apart
White-sided Hillstar
Gorgeted Woodstar: tiny; males with deep violet gorget extending to flanks; metallic green above; white underparts; females 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
White-sided Hillstar
A medium-sized hummingbird (12-13 cm) found in the southern Andes from Bolivia to Argentina at 2,500-4,500 m. Green plumage with white flanks. Nectarivore of puna grasslands and rocky slopes. Enters torpor nightly to survive cold Andean nights. Southern Andean near-endemic.
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.