Sword-billed Hummingbird vs Tepui Goldenthroat
Ensifera ensifera 比較対象 Polytmus milleri
Side-by-Side Comparison
| 属性 | Sword-billed Hummingbird | Tepui Goldenthroat |
|---|---|---|
| 学名 | Ensifera ensifera | Polytmus milleri |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 15.3 cm (6.0 in) | 12.8 cm (5.0 in) |
| 体重 | 12.75 g (0.45 oz) | 4.76 g (0.17 oz) |
| 食性 | Nectarivore uniquely adapted to extremely long flowers of Passiflora and Datura. Supplements with small insects … | Nectarivore visiting tepui shrub flowers and lowland grasses. Supplements nectar with small arthropods gleaned from … |
| 一腹卵数 | -- | 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.
Tepui Goldenthroat
Pure, bell-like tone with long resonance; single clear note ringing out then slowly fading in open woodland.
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.
Tepui Goldenthroat
Found on tepui plateaus of Venezuela and adjacent Guyana and Brazil in open highland vegetation. 1,200–2,800 m.
保全状況
Sword-billed Hummingbird
Tepui Goldenthroat
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
Tepui Goldenthroat
Rufous-throated Sapphire: males with shining rufous throat; bronze-green back; white pectoral tufts; females green above with rufous throat
About These Birds
Sword-billed Hummingbird
アンデスの雲霧林に生息するハチドリで、体と同じ長さの嘴を持つ。自然界で嘴が最も長い鳥の一つ。
Tepui Goldenthroat
A medium-sized hummingbird (10-11 cm) endemic to the tepui highlands of southern Venezuela and adjacent Guyana. Green plumage with a golden throat. Nectarivore of tepui scrub and forest edges. Restricted to the Pantepui region above 1,000 m. Poorly known.