Ruby-throated Hummingbird vs Green-backed Firecrown
Archilochus colubris so với Sephanoides sephaniodes
Side-by-Side Comparison
| Thuộc Tính | Ruby-throated Hummingbird | Green-backed Firecrown |
|---|---|---|
| Tên Khoa Học | Archilochus colubris | Sephanoides sephaniodes |
| 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 | 11,0 cm (4.3 in) | 12,0 cm (4.7 in) |
| Khối Lượng | 3,1 g (0.11 oz) | 6,583333333333333 g (0.23 oz) |
| Chế Độ Ăn | Nectar from tubular flowers, supplemented with small insects and spiders for protein. Feeds at over … | Nectarivore foraging at diverse temperate-zone flowers in Chile and Argentina, including Fuchsia and Embothrium. Takes … |
| Số Trứng | 2 | 1-2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Môi Trường Sống Chung
Ruby-throated Hummingbird only
Không
Green-backed Firecrown only
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.
Green-backed Firecrown
Crisp, whistled descending phrase; clean notes stepping down smoothly with precision and musical elegance at dawn.
Geographic Range & Migration
Ruby-throated Hummingbird
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
Green-backed Firecrown
Found along the length of Chile and western Argentina in temperate forest and scrub. Sea level to 2,000 m. Migratory.
Tình Trạng Bảo Tồn
Ruby-throated Hummingbird
Green-backed Firecrown
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
Green-backed Firecrown
Black Metaltail: males shining green with black-metallic gorget; white postocular stripe; females green above; white-spotted buff 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.
Green-backed Firecrown
A medium-sized hummingbird (10-11 cm) found in temperate forests of southern South America from central Chile and Argentina to Tierra del Fuego. Green plumage with coppery-green crown. The southernmost hummingbird species, tolerating sub-zero temperatures. Nectarivore of native Fuchsia and Embothrium.