Humboldt's Hummingbird vs Rufous-booted Racket-tail
Chrysuronia humboldtii so với Ocreatus addae
Side-by-Side Comparison
| Thuộc Tính | Humboldt's Hummingbird | Rufous-booted Racket-tail |
|---|---|---|
| Tên Khoa Học | Chrysuronia humboldtii | Ocreatus addae |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Least Concern | Not Evaluated |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | — | — |
| Khối Lượng | 6,275 g (0.22 oz) | 3,0 g (0.11 oz) |
| Chế Độ Ăn | Feeds on nectar from Colombian and Venezuelan lowland flowers. Supplements with small arthropods caught near … | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| Số Trứng | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Humboldt's Hummingbird only
Rufous-booted Racket-tail only
Không
Song & Call Comparison
Humboldt's Hummingbird
Melodic, descending two-note whistle; pure warm tones stepping down smoothly, given repeatedly from territory perch.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Humboldt's Hummingbird
Found in humid Pacific lowland forests of Colombia and Ecuador. Resident in Chocó forest edges.
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
Humboldt's Hummingbird
Rufous-booted Racket-tail
How to Tell Them Apart
Humboldt's Hummingbird
Black-throated Coucal: black throat; brown streaked above; rufous wings; buff below; long dark tail; red eye; black throat distinctive
Rufous-booted Racket-tail
Golden-bellied Starfrontlet: tiny; males with brilliant orange-gold belly; violet gorget; females green above; spotted buff below
About These Birds
Humboldt's Hummingbird
A medium-sized hummingbird (10-11 cm) found in humid Pacific lowland forests of Colombia and Ecuador. Green plumage. Nectarivore of Chocó forest edges. Named after Alexander von Humboldt. Sometimes considered a subspecies of Sapphire-throated Hummingbird.
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.