Ruby-throated Hummingbird vs White-tailed Hillstar
Archilochus colubris เปรียบเทียบกับ Urochroa leucura
Side-by-Side Comparison
| คุณสมบัติ | Ruby-throated Hummingbird | White-tailed Hillstar |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Archilochus colubris | Urochroa leucura |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Trochilidae | Trochilidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | 8.5 cm (3.3 in) | — |
| กว้างปีก | 11.0 cm (4.3 in) | 14.7 cm (5.8 in) |
| น้ำหนัก | 3.1 g (0.11 oz) | 9.774999999999999 g (0.34 oz) |
| อาหาร | Nectar from tubular flowers, supplemented with small insects and spiders for protein. Feeds at over … | Nectarivore of Peruvian montane shrubs; forages at Ericaceae and Puya flowers. Supplements with small insects. |
| จำนวนไข่ | 2 | -- |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
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Ruby-throated Hummingbird only
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White-tailed Hillstar only
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Ruby-throated Hummingbird
Deciduous and mixed forests, woodland edges, gardens, and parks with flowering plants. Migrates across the Gulf of Mexico.
Song & Call Comparison
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.
White-tailed Hillstar
Sharp, emphatic two-note call; high accented first note followed by softer brief second, repeated persistently.
Geographic Range & Migration
Ruby-throated Hummingbird
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
White-tailed Hillstar
Found on the eastern Andean slope of Peru and Bolivia in montane cloud forest. 1,000–2,600 m elevation.
สถานะการอนุรักษ์
Ruby-throated Hummingbird
White-tailed Hillstar
How to Tell Them Apart
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
White-tailed Hillstar
Dusky Starfrontlet: males with iridescent purple gorget; metallic bronze-green; white flanks; females green above; spotted underparts
About These Birds
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.
White-tailed Hillstar
A medium-sized hummingbird (12-13 cm) found in Andean cloud forests of Peru and Bolivia at 2,000-3,500 m. Green plumage with white outer tail feathers visible in flight. Nectarivore of montane forest. Recently split from Rufous-gaped Hillstar.