Blue-mantled Thornbill vs Rufous-booted Racket-tail
Chalcostigma stanleyi comparado com Ocreatus addae
Side-by-Side Comparison
| Atributo | Blue-mantled Thornbill | Rufous-booted Racket-tail |
|---|---|---|
| Nome científico | Chalcostigma stanleyi | Ocreatus addae |
| Ordem | Caprimulgiformes | Caprimulgiformes |
| Família | Trochilidae | Trochilidae |
| Estado de conservação | Least Concern | Not Evaluated |
| Comprimento | — | — |
| Envergadura | 13,2 cm (5.2 in) | — |
| Peso | 5,2749999999999995 g (0.19 oz) | 3,0 g (0.11 oz) |
| Dieta | Nectarivore of Andean treeline scrub; visits Ericaceae and Brachyotum blooms. Supplements with small arthropods. | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| Tamanho da postura | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Habitats partilhados
Nenhum
Blue-mantled Thornbill only
Rufous-booted Racket-tail only
Song & Call Comparison
Blue-mantled Thornbill
Crisp, whistled notes in ascending sequence; clean bright tones stepping up smoothly in cheerful morning delivery.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
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.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
Estado de conservação
Blue-mantled Thornbill
Rufous-booted Racket-tail
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
Rufous-booted Racket-tail
Golden-bellied Starfrontlet: tiny; males with brilliant orange-gold belly; violet gorget; females green above; spotted buff below
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.
Rufous-booted Racket-tail
A small hummingbird (8-10 cm plus tail rackets) found in Andean cloud forests of southeastern Peru and Bolivia at 1,200-2,200 m. Males have rufous leg puffs instead of white. Recently split from Booted Racket-tail. Nectarivore of montane forest undergrowth.