Black Jacobin vs Ruby-throated Hummingbird
Florisuga fusca مقارنةً بـ Archilochus colubris
Side-by-Side Comparison
| السمة | Black Jacobin | Ruby-throated Hummingbird |
|---|---|---|
| الاسم العلمي | Florisuga fusca | Archilochus colubris |
| الرتبة | Caprimulgiformes | Caprimulgiformes |
| الفصيلة | Trochilidae | Trochilidae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | 8,5 cm (3.3 in) |
| طول الجناح | 15,2 cm (6.0 in) | 11,0 cm (4.3 in) |
| الوزن | 8,0 g (0.28 oz) | 3,1 g (0.11 oz) |
| النظام الغذائي | Nectarivore trap-lining low-forest flowers; catches small insects and spiders gleaned from leaf surfaces. | Nectar from tubular flowers, supplemented with small insects and spiders for protein. Feeds at over … |
| عدد البيض في الوضع | 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
Black Jacobin
Melodic, flute-like series descending smoothly; rich sustained notes with slight vibrato, beautiful and clear in calm air.
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
Black Jacobin
Endemic to eastern Brazil in the Atlantic Forest from Bahia south to Rio Grande do Sul. Resident in Atlantic forest and adjacent open areas.
Ruby-throated Hummingbird
Eastern North America from southern Canada to the Gulf Coast. Winters in Central America and southern Mexico.
حالة الحفاظ
Black Jacobin
Ruby-throated Hummingbird
How to Tell Them Apart
Black Jacobin
Males entirely blackish with a glossy blue-violet sheen; white tips to undertail coverts; white tail corners; female similar but duller with white-spotted underparts; Atlantic forest hummingbird with unusual all-dark plumage …
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
Black Jacobin
A medium-sized hummingbird (12-13 cm) endemic to the Atlantic Forest of southeastern Brazil. Mostly black plumage with white tail sides visible in flight. Nectarivore of forest and forest edge. Often feeds at bromeliads and Erythrina flowers. An important pollinator of Atlantic Forest plants.
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.