Sword-billed Hummingbird vs Blue-tailed Hummingbird
Ensifera ensifera 对比 Saucerottia cyanura
Side-by-Side Comparison
| 属性 | Sword-billed Hummingbird | Blue-tailed Hummingbird |
|---|---|---|
| 学名 | Ensifera ensifera | Saucerottia cyanura |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 15.3 cm (6.0 in) | — |
| 体重 | 12.75 g (0.45 oz) | 4.35 g (0.15 oz) |
| 食性 | Nectarivore uniquely adapted to extremely long flowers of Passiflora and Datura. Supplements with small insects … | Visits flowering trees and epiphytes for nectar; supplements diet with small arthropods including gnats, midges, … |
| 产卵数 | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Sword-billed Hummingbird
Thin, reedy whistle with plaintive character; soft nasal tone held briefly then gently fading in mist.
Blue-tailed Hummingbird
Soft, pure whistle with plaintive character; gentle wavering tone given quietly in shaded understory.
Geographic Range & Migration
Sword-billed Hummingbird
Found in Andean cloud forests from Venezuela south through Colombia, Ecuador, Peru, and Bolivia. 1,700–3,500 m.
Blue-tailed Hummingbird
Found in humid forests from Mexico to Costa Rica at 300-1,500 m. Resident on both Pacific and Caribbean slopes.
保护状况
Sword-billed Hummingbird
Blue-tailed Hummingbird
How to Tell Them Apart
Sword-billed Hummingbird
Olivaceous Thornbill: males with iridescent purple gorget; metallic olive-bronze above; white underparts; females green above; spots
Blue-tailed Hummingbird
Kai Coucal: dark brown above with iridescent sheen; rufous wings; pale buff below; long dark tail; orange-red eye; island species
About These Birds
Sword-billed Hummingbird
剑嘴蜂鸟。嘴与身体等长（8-10厘米）。栖息于安第斯云雾林。专门取食深处的西番莲花蜜。
Blue-tailed Hummingbird
A medium-sized hummingbird (9-10 cm) found in humid forests from Mexico to Costa Rica at 300-1,500 m. Green plumage with a blue tail. Nectarivore of forest edges and gardens. Found on both Pacific and Caribbean slopes of Central America.