Blue-mantled Thornbill vs Amethyst-throated Mountain-gem
Chalcostigma stanleyi comparado com Lampornis amethystinus
Side-by-Side Comparison
| Atributo | Blue-mantled Thornbill | Amethyst-throated Mountain-gem |
|---|---|---|
| Nome científico | Chalcostigma stanleyi | Lampornis amethystinus |
| Ordem | Caprimulgiformes | Caprimulgiformes |
| Família | Trochilidae | Trochilidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | — |
| Envergadura | 13,2 cm (5.2 in) | 13,1 cm (5.2 in) |
| Peso | 5,2749999999999995 g (0.19 oz) | 5,6000000000000005 g (0.20 oz) |
| Dieta | Nectarivore of Andean treeline scrub; visits Ericaceae and Brachyotum blooms. Supplements with small arthropods. | Nectarivore of Mexican and Central American montane pine-oak forest; visits Ericaceae and Salvia. Gleans arthropods. |
| Tamanho da postura | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Habitats partilhados
Nenhum
Blue-mantled Thornbill only
Amethyst-throated Mountain-gem only
Song & Call Comparison
Blue-mantled Thornbill
Crisp, whistled notes in ascending sequence; clean bright tones stepping up smoothly in cheerful morning delivery.
Amethyst-throated Mountain-gem
Pure, sustained flute-like tone held steady; single clear note with barely perceptible vibrato in tropical shade.
Geographic Range & Migration
Blue-mantled Thornbill
Found in high Andean páramo from Colombia south through Ecuador and Peru to Bolivia. 3,000–4,500 m elevation.
Amethyst-throated Mountain-gem
Found in montane forest from Mexico south through Guatemala and Honduras to El Salvador. 1,000–3,200 m.
Estado de conservação
Blue-mantled Thornbill
Amethyst-throated Mountain-gem
How to Tell Them Apart
Blue-mantled Thornbill
Long-billed Starthroat: males glittering blue-green gorget; metallic green above; long bill; white pectoral tufts; females green with spots
Amethyst-throated Mountain-gem
Bumblebee Hummingbird: tiny; males with brilliant violet gorget; metallic green above; white underparts; females green above; spotted
About These Birds
Blue-mantled Thornbill
Espigueiro-de-Stanley (Chalcostigma stanleyi), 9–10 cm. Macho com gorget roxo-esverdeado, dorso verde-oliva e coroa escura. Habita páramos e arbustos de altitude nos Andes do Peru, Equador e Bolívia, em altitudes acima de 3.500 m. Alimenta-se de néctar de plantas de altitude e insetos.
Amethyst-throated Mountain-gem
O beija-flor-de-garganta-ametista é um beija-flor mexicano com garganta ametista brilhante nos machos, encontrado em florestas de montanha no México.