Rufous-booted Racket-tail vs Crowned Woodnymph
Ocreatus addae 比較対象 Thalurania colombica
Side-by-Side Comparison
| 属性 | Rufous-booted Racket-tail | Crowned Woodnymph |
|---|---|---|
| 学名 | Ocreatus addae | Thalurania colombica |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 10.5 cm (4.1 in) |
| 体重 | 3.0 g (0.11 oz) | 4.34 g (0.15 oz) |
| 食性 | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Feeds on nectar from understory herbs and epiphytes in humid forest. Supplements diet with insects … |
| 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.
Crowned Woodnymph
Sharp, crackling chatter with percussive quality; rapid dry notes delivered forcefully during active territory defense.
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.
Crowned Woodnymph
Found in humid forests from Guatemala to Peru. Resident in lowland and montane forests on both slopes of the Andes.
保全状況
Rufous-booted Racket-tail
Crowned Woodnymph
How to Tell Them Apart
Rufous-booted Racket-tail
Golden-bellied Starfrontlet: tiny; males with brilliant orange-gold belly; violet gorget; females green above; spotted buff below
Crowned Woodnymph
White-quilled Bustard: males with white wing quills visible in flight; brown-vermiculated above; pale below; black belly band
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.
Crowned Woodnymph
コロンビアウッドニンフはコロンビアとパナマの熱帯雨林に生息するハチドリの一種です。雄は輝く緑と青の羽毛を持ちます。