Green-fronted Lancebill vs Ruby-throated Hummingbird
Doryfera ludovicae 比較対象 Archilochus colubris
Side-by-Side Comparison
| 属性 | Green-fronted Lancebill | Ruby-throated Hummingbird |
|---|---|---|
| 学名 | Doryfera ludovicae | 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 | 11.5 cm (4.5 in) | 11.0 cm (4.3 in) |
| 体重 | 5.95 g (0.21 oz) | 3.1 g (0.11 oz) |
| 食性 | Nectarivore probing epiphyte flowers and bromeliads with long straight bill in montane forest. Supplements with … | 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
Green-fronted Lancebill
Rough, raspy chattering with energetic rhythm; series of coarse notes delivered rapidly near active foraging territories.
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
Green-fronted Lancebill
Found in Andean cloud forests from Costa Rica through Colombia, Venezuela, Ecuador, and Peru to Bolivia. 1,200–2,400 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
Green-fronted Lancebill
Ruby-throated Hummingbird
How to Tell Them Apart
Green-fronted Lancebill
Spangled Coquette: males with spectacular white upswept crest; glittering green gorget; females with white-streaked crest; buff-white below
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
Green-fronted Lancebill
A medium-sized hummingbird (11-12 cm) with a remarkably long, straight bill (40 mm). Green plumage with a violet-blue forehead. Found in Andean cloud forests from Costa Rica to Bolivia at 800-2,500 m. Named lancebill for its dagger-like bill used to pierce the base of long tubular flowers.
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.