Rufous-booted Racket-tail vs Long-tailed Woodnymph
Ocreatus addae 比較対象 Thalurania watertonii
Side-by-Side Comparison
| 属性 | Rufous-booted Racket-tail | Long-tailed Woodnymph |
|---|---|---|
| 学名 | Ocreatus addae | Thalurania watertonii |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Not Evaluated | Endangered |
| 体長 | — | — |
| 翼開長 | — | 10.9 cm (4.3 in) |
| 体重 | 3.0 g (0.11 oz) | 4.3999999999999995 g (0.16 oz) |
| 食性 | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Feeds on floral nectar in Atlantic Forest understory; supplements diet with small insects and spiders … |
| 一腹卵数 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Long-tailed Woodnymph
Soft, sibilant notes in flowing sequence; gentle high twittering with airy quality near flowering vegetation.
Geographic Range & Migration
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
Long-tailed Woodnymph
Endemic to the Atlantic Forest of northeastern Brazil. Classified as Endangered due to severe habitat fragmentation.
保全状況
Rufous-booted Racket-tail
Long-tailed Woodnymph
About These Birds
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.
Long-tailed Woodnymph
ロングテールウッドニンフはブラジル北東部の固有種で、絶滅危惧種に指定されています。雄は特徴的に長い尾羽を持ちます。