Blue-bearded Helmetcrest vs Ruby-throated Hummingbird
Oxypogon cyanolaemus 比較対象 Archilochus colubris
Side-by-Side Comparison
| 属性 | Blue-bearded Helmetcrest | Ruby-throated Hummingbird |
|---|---|---|
| 学名 | Oxypogon cyanolaemus | Archilochus colubris |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Endangered | Least Concern |
| 体長 | — | 8.5 cm (3.3 in) |
| 翼開長 | 14.0 cm (5.5 in) | 11.0 cm (4.3 in) |
| 体重 | 4.8 g (0.17 oz) | 3.1 g (0.11 oz) |
| 食性 | Nectarivore of Venezuelan páramo; forages at Espeletia and Ericaceae blooms in cold conditions. Catches small … | Nectar from tubular flowers, supplemented with small insects and spiders for protein. Feeds at over … |
| 一腹卵数 | -- | 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
Blue-bearded Helmetcrest
Rapid, mechanical clicking in even rhythm; dry staccato notes forming continuous even sequence typical of swift.
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
Blue-bearded Helmetcrest
Endemic to the Sierra Nevada de Santa Marta, Colombia, in high páramo at 3,000–4,600 m. Critically endangered.
Ruby-throated Hummingbird
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
保全状況
Blue-bearded Helmetcrest
Ruby-throated Hummingbird
How to Tell Them Apart
Blue-bearded Helmetcrest
Blue-chested Hummingbird: males with glittering blue-green gorget; metallic bronze-green above; females green above; buff underparts
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
Blue-bearded Helmetcrest
A small hummingbird (11-12 cm) endemic to the Sierra Nevada de Santa Marta, Colombia, at 3,500-4,700 m. Males have a blue beard and erect crest. Critically Endangered due to extremely restricted páramo habitat on an isolated mountain range.
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.