Olivaceous Thornbill vs Sword-billed Hummingbird
Chalcostigma olivaceum comparado con Ensifera ensifera
Side-by-Side Comparison
| Atributo | Olivaceous Thornbill | Sword-billed Hummingbird |
|---|---|---|
| Nombre científico | Chalcostigma olivaceum | Ensifera ensifera |
| Orden | Caprimulgiformes | Caprimulgiformes |
| Familia | Trochilidae | Trochilidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 16,3 cm (6.4 in) | 15,3 cm (6.0 in) |
| Peso | 7,3999999999999995 g (0.26 oz) | 12,75 g (0.45 oz) |
| Dieta | Nectarivore of high Bolivian and Peruvian páramo; short bill accesses small open flowers. Gleans insects … | Nectarivore uniquely adapted to extremely long flowers of Passiflora and Datura. Supplements with small insects … |
| Tamaño de la puesta | 2 | -- |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Olivaceous Thornbill only
Ninguno
Sword-billed Hummingbird only
Ninguno
Song & Call Comparison
Olivaceous Thornbill
Buzzy, high-frequency trill with insect-like quality; sustained continuous vibration with rapid amplitude modulation.
Sword-billed Hummingbird
Thin, reedy whistle with plaintive character; soft nasal tone held briefly then gently fading in mist.
Geographic Range & Migration
Olivaceous Thornbill
Widespread in high Andean puna grassland from Peru to Bolivia and northwestern Argentina. 3,200–4,800 m.
Sword-billed Hummingbird
Found in Andean cloud forests from Venezuela south through Colombia, Ecuador, Peru, and Bolivia. 1,700–3,500 m.
Estado de conservación
Olivaceous Thornbill
Sword-billed Hummingbird
How to Tell Them Apart
Olivaceous Thornbill
Blue-tufted Starthroat: males with iridescent blue-green gorget; metallic green above; white pectoral tufts; females green above; spots
Sword-billed Hummingbird
Olivaceous Thornbill: males with iridescent purple gorget; metallic olive-bronze above; white underparts; females green above; spots
About These Birds
Olivaceous Thornbill
Picoespina olivácea (Chalcostigma olivaceum), 11 cm. Plumaje verde oliváceo general; garganta del macho con brillo verdoso; cola moderadamente larga. Habita en páramos arbustivos y bordes de bosque alto-andino de Perú y Bolivia. Se alimenta de néctar de flores alpinas.
Sword-billed Hummingbird
Colibrí portaespada, 17-22 cm (pico hasta 10 cm). El pico más largo en relación con el cuerpo de cualquier ave. Verde iridiscente. Habita bosques nublados andinos. Polinizador especializado. Preocupación menor.