Rufous-booted Racket-tail vs Crimson Topaz
Ocreatus addae so với Topaza pella
Side-by-Side Comparison
| Thuộc Tính | Rufous-booted Racket-tail | Crimson Topaz |
|---|---|---|
| Tên Khoa Học | Ocreatus addae | Topaza pella |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Not Evaluated | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | — | 15,0 cm (5.9 in) |
| Khối Lượng | 3,0 g (0.11 oz) | 12,625 g (0.45 oz) |
| Chế Độ Ăn | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Nectarivore and insectivore; extracts nectar from trap-lining flowers and hawks small flying insects in forest … |
| 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.
Crimson Topaz
Rough, raspy chatter with intermittent clear whistles; complex mix of harsh and musical notes characteristic of active pairs.
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.
Crimson Topaz
Found in the Guiana Shield and Amazon basin from Colombia and Venezuela south to Peru and Brazil. Resident near rivers in lowland forest.
Tình Trạng Bảo Tồn
Rufous-booted Racket-tail
Crimson Topaz
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
Crimson Topaz
Spectacular male: deep crimson-red body with iridescent golden-green throat; elongated crossed central tail feathers; female green and cinnamon-buff; one of South America's most brilliantly coloured hummingbirds.
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.
Crimson Topaz
A spectacular, large hummingbird (18-20 cm including long tail) of northern South America. Male has glittering crimson-red throat and breast with a golden-green back. The largest hummingbird in its range. Nectarivore of lowland tropical forest canopy, visiting large flowers. Found in Venezuela, the Guianas, and northern Brazil.