Booted Racket-tail vs Great Sapphirewing
Ocreatus underwoodii 比較対象 Pterophanes cyanopterus
Side-by-Side Comparison
| 属性 | Booted Racket-tail | Great Sapphirewing |
|---|---|---|
| 学名 | Ocreatus underwoodii | Pterophanes cyanopterus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 8.5 cm (3.3 in) | 21.0 cm (8.3 in) |
| 体重 | 2.8 g (0.10 oz) | 10.05 g (0.35 oz) |
| 食性 | Nectarivore of Andean foothill forest; visits Ericaceae and Heliconia flowers. Catches small insects in aerial … | Nectarivore of high Andean cloud forest and treeline; one of the largest hummingbirds. Visits Ericaceae … |
| 一腹卵数 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Booted Racket-tail
Melodic, rolling phrase with liquid quality; warm bubbly notes tumbling in pleasant continuous musical sequence.
Great Sapphirewing
Buzzy, insect-like trill with pulsing rhythm; high-frequency vibration with slight amplitude modulation near flowers.
Geographic Range & Migration
Booted Racket-tail
Widespread in Andean foothill and cloud forests from Venezuela south through Colombia, Ecuador, and Peru. 200–1,800 m.
Great Sapphirewing
Found in high Andean cloud forests and páramo from Colombia south through Ecuador and Peru to Bolivia. 2,400–3,800 m.
保全状況
Booted Racket-tail
Great Sapphirewing
About These Birds
Booted Racket-tail
A small hummingbird (8-10 cm plus 5-7 cm tail rackets in males) widely distributed in Andean cloud forests from Venezuela to Bolivia at 1,500-3,000 m. Males have long, wire-like outer tail feathers ending in dark blue racket tips and fluffy white leg puffs. A cloud forest icon.
Great Sapphirewing
A large hummingbird (18 cm, wingspan 28 cm) found in Andean cloud forests from Colombia to Bolivia at 2,500-3,500 m. Brilliant sapphire-blue wings, green body, and long tail. One of the largest hummingbirds. Nectarivore of montane forest, visiting large-flowered Ericaceae.