Marvelous Spatuletail vs Rufous-booted Racket-tail
Loddigesia mirabilis so với Ocreatus addae
Side-by-Side Comparison
| Thuộc Tính | Marvelous Spatuletail | Rufous-booted Racket-tail |
|---|---|---|
| Tên Khoa Học | Loddigesia mirabilis | Ocreatus addae |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Near Threatened | Not Evaluated |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 8,4 cm (3.3 in) | — |
| Khối Lượng | 3,0 g (0.11 oz) | 3,0 g (0.11 oz) |
| Chế Độ Ăn | Nectarivore of northern Peruvian cloud forest. Visits Ericaceae and Alstroemeria flowers; supplements with small arthropods. | 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
Marvelous Spatuletail only
Không
Rufous-booted Racket-tail only
Không
Song & Call Comparison
Marvelous Spatuletail
Extraordinarily high, thin squeak barely audible; minute twittering notes almost beyond perception, given rarely by male.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Marvelous Spatuletail
Endemic to a small area of the Río Utcubamba valley in Amazonas region, Peru at 2,100–2,900 m. Endangered.
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
Marvelous Spatuletail
Rufous-booted Racket-tail
How to Tell Them Apart
Marvelous Spatuletail
Emerald-bellied Puffleg: males with iridescent violet gorget; metallic emerald-green above; white belly; females green above; spots
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
Marvelous Spatuletail
One of the world's most extraordinary hummingbirds (10 cm body, males with 15 cm tail rackets). Males have two extremely long outer tail feathers ending in large, iridescent violet-blue discs. Endemic to a tiny area of northern Peru. Critically Endangered. Fewer than 1,000 individuals.
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.