Velvet-purple Coronet vs Rufous-booted Racket-tail
Boissonneaua jardini เปรียบเทียบกับ Ocreatus addae
Side-by-Side Comparison
| คุณสมบัติ | Velvet-purple Coronet | Rufous-booted Racket-tail |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Boissonneaua jardini | Ocreatus addae |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Trochilidae | Trochilidae |
| สถานะการอนุรักษ์ | Least Concern | Not Evaluated |
| ความยาว | — | — |
| กว้างปีก | 15.0 cm (5.9 in) | — |
| น้ำหนัก | 9.4 g (0.33 oz) | 3.0 g (0.11 oz) |
| อาหาร | Nectarivore of Colombian Pacific slope cloud forest; visits Ericaceae and Heliconia. Supplements with small arthropods. | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| จำนวนไข่ | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
ถิ่นที่อยู่อาศัยร่วมกัน
Velvet-purple Coronet only
ไม่มี
Rufous-booted Racket-tail only
ไม่มี
Song & Call Comparison
Velvet-purple Coronet
Harsh, grating screech with urgent tone; sudden loud rough call given sharply during aerial chase encounter.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Velvet-purple Coronet
Found on the Pacific slope of the Andes in Colombia and northwestern Ecuador in cloud forest. 500–1,800 m.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
สถานะการอนุรักษ์
Velvet-purple Coronet
Rufous-booted Racket-tail
How to Tell Them Apart
Velvet-purple Coronet
Rainbow Starfrontlet: males with brilliant magenta-orange gorget; metallic green above; white belly; females green above; spotted below
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
Velvet-purple Coronet
A medium-sized hummingbird (11-12 cm) found in cloud forests of western Colombia and Ecuador at 1,200-2,400 m. Males have dark velvety-purple plumage with green iridescence. Nectarivore of Chocó cloud forest. A striking, dark-plumaged 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.