White-throated Mountain-gem vs Ruby-throated Hummingbird
Lampornis castaneoventris в сравнении с Archilochus colubris
Side-by-Side Comparison
| Характеристика | White-throated Mountain-gem | Ruby-throated Hummingbird |
|---|---|---|
| Научное название | Lampornis castaneoventris | Archilochus colubris |
| Отряд | Caprimulgiformes | Caprimulgiformes |
| Семейство | Trochilidae | Trochilidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | 8,5 cm (3.3 in) |
| Размах крыльев | 12,2 cm (4.8 in) | 11,0 cm (4.3 in) |
| Масса | 5,58 g (0.20 oz) | 3,1 g (0.11 oz) |
| Питание | Nectarivore of Costa Rican highlands; visits diverse cloud-forest flowers. Supplements diet with small insects and … | Nectar from tubular flowers, supplemented with small insects and spiders for protein. Feeds at over … |
| Размер кладки | 2 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Общие среды обитания
White-throated Mountain-gem only
Нет
Ruby-throated Hummingbird only
Нет
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-throated Mountain-gem
Thin, reedy trill with wavering quality; soft rapid notes with gentle tremolo effect given from cover.
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-throated Mountain-gem
Endemic to the highlands of Costa Rica and western Panama in cloud forest. 1,200–2,800 m. Resident.
Ruby-throated Hummingbird
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
Охранный статус
White-throated Mountain-gem
Ruby-throated Hummingbird
How to Tell Them Apart
White-throated Mountain-gem
Grey-breasted Sabrewing: males with iridescent violet gorget; metallic green above; gray breast; females green above; spotted 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
White-throated Mountain-gem
A medium-sized hummingbird (10-11 cm) endemic to the highlands of Costa Rica and western Panama at 1,000-2,500 m. Males have a white throat and chestnut belly. Nectarivore of cloud forest and forest edges. A Talamanca-Chiriquí 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.