Rufous-booted Racket-tail vs Crowned Woodnymph
Ocreatus addae so với Thalurania colombica
Side-by-Side Comparison
| Thuộc Tính | Rufous-booted Racket-tail | Crowned Woodnymph |
|---|---|---|
| Tên Khoa Học | Ocreatus addae | Thalurania colombica |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Not Evaluated | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | — | 10,5 cm (4.1 in) |
| Khối Lượng | 3,0 g (0.11 oz) | 4,34 g (0.15 oz) |
| Chế Độ Ăn | 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 … |
| Số Trứng | 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.
Tình Trạng Bảo Tồn
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
A medium-sized hummingbird (10-11 cm) found in humid forests from Guatemala to Peru. Males have a brilliant violet-blue crown and green body. Nectarivore of forest and forest edges. One of the most common woodnymph hummingbirds in Central and South America.