Rufous-booted Racket-tail vs Bumblebee Hummingbird
Ocreatus addae so với Selasphorus heloisa
Side-by-Side Comparison
| Thuộc Tính | Rufous-booted Racket-tail | Bumblebee Hummingbird |
|---|---|---|
| Tên Khoa Học | Ocreatus addae | Selasphorus heloisa |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Not Evaluated | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | — | — |
| Khối Lượng | 3,0 g (0.11 oz) | 2,35 g (0.08 oz) |
| Chế Độ Ăn | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Feeds on floral nectar in pine-oak highlands of Mexico, hovering at small tubular blooms. Gleans … |
| Số Trứng | 2 | -- |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Rufous-booted Racket-tail only
Không
Bumblebee Hummingbird only
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Song & Call Comparison
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Bumblebee Hummingbird
Thin, high whistle with delicate quality; soft pure note barely audible beyond close range in undergrowth.
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.
Bumblebee Hummingbird
Endemic to the mountains of Mexico at 1,800-3,500 m elevation. Resident in pine-oak and cloud forest edges.
Tình Trạng Bảo Tồn
Rufous-booted Racket-tail
Bumblebee Hummingbird
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
Bumblebee Hummingbird
Steely-vented Hummingbird (alt): males with steel-blue gorget; metallic green above; steel-blue tail; females green above; spotted
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.
Bumblebee Hummingbird
A tiny hummingbird (7-8 cm) endemic to the mountains of Mexico at 1,800-3,500 m. Males have a magenta gorget. Named for its resemblance to a bumblebee in size. Nectarivore of pine-oak and cloud forest. One of the smallest hummingbirds in Mexico.