Black Jacobin vs Amethyst-throated Mountain-gem
Florisuga fusca в сравнении с Lampornis amethystinus
Side-by-Side Comparison
| Характеристика | Black Jacobin | Amethyst-throated Mountain-gem |
|---|---|---|
| Научное название | Florisuga fusca | Lampornis amethystinus |
| Отряд | Caprimulgiformes | Caprimulgiformes |
| Семейство | Trochilidae | Trochilidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 15,2 cm (6.0 in) | 13,1 cm (5.2 in) |
| Масса | 8,0 g (0.28 oz) | 5,6000000000000005 g (0.20 oz) |
| Питание | Nectarivore trap-lining low-forest flowers; catches small insects and spiders gleaned from leaf surfaces. | Nectarivore of Mexican and Central American montane pine-oak forest; visits Ericaceae and Salvia. Gleans arthropods. |
| Размер кладки | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Black Jacobin
Melodic, flute-like series descending smoothly; rich sustained notes with slight vibrato, beautiful and clear in calm air.
Amethyst-throated Mountain-gem
Pure, sustained flute-like tone held steady; single clear note with barely perceptible vibrato in tropical shade.
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.
Amethyst-throated Mountain-gem
Found in montane forest from Mexico south through Guatemala and Honduras to El Salvador. 1,000–3,200 m.
Охранный статус
Black Jacobin
Amethyst-throated Mountain-gem
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 …
Amethyst-throated Mountain-gem
Bumblebee Hummingbird: tiny; males with brilliant violet gorget; metallic green above; white underparts; females green above; spotted
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.
Amethyst-throated Mountain-gem
A medium-sized hummingbird (11-12 cm) found in mountain forests from Mexico to Honduras at 1,000-3,000 m. Males have an amethyst-purple throat. Nectarivore of pine-oak and cloud forest. Commonly visits feeders in Mexican highland gardens.