Slender-tailed Woodstar vs Rufous-booted Racket-tail
Microstilbon burmeisteri so với Ocreatus addae
Side-by-Side Comparison
| Thuộc Tính | Slender-tailed Woodstar | Rufous-booted Racket-tail |
|---|---|---|
| Tên Khoa Học | Microstilbon burmeisteri | Ocreatus addae |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Least Concern | Not Evaluated |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 6,0 cm (2.4 in) | — |
| Khối Lượng | 2,09 g (0.07 oz) | 3,0 g (0.11 oz) |
| Chế Độ Ăn | Nectarivore of montane scrub, probing small tubular flowers. Catches spiders and minute flies to supply … | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| Số Trứng | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Slender-tailed Woodstar only
Không
Rufous-booted Racket-tail only
Không
Song & Call Comparison
Slender-tailed Woodstar
Soft, liquid descending cascade; gentle mellow notes flowing downward in quiet musical sequence at dawn.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Slender-tailed Woodstar
Found in arid scrub and woodland of central Bolivia and northwestern Argentina at 1,000-3,000 m. Resident and partial migrant.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
Tình Trạng Bảo Tồn
Slender-tailed Woodstar
Rufous-booted Racket-tail
About These Birds
Slender-tailed Woodstar
A tiny hummingbird (7-8 cm) found in arid scrub and woodland of central Bolivia and northwestern Argentina at 1,000-3,000 m. Males have a slender, forked tail. Nectarivore of dry forest and garden flowers. Named after the German zoologist Hermann Burmeister.
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.