Rufous-booted Racket-tail vs Blue-headed Hummingbird
Ocreatus addae เปรียบเทียบกับ Riccordia bicolor
Side-by-Side Comparison
| คุณสมบัติ | Rufous-booted Racket-tail | Blue-headed Hummingbird |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Ocreatus addae | Riccordia bicolor |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Trochilidae | Trochilidae |
| สถานะการอนุรักษ์ | Not Evaluated | Near Threatened |
| ความยาว | — | — |
| กว้างปีก | — | — |
| น้ำหนัก | 3.0 g (0.11 oz) | 4.55 g (0.16 oz) |
| อาหาร | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Nectarivore probing tubular flowers in humid forest. Supplements nectar diet with small insects and spiders … |
| จำนวนไข่ | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
ถิ่นที่อยู่อาศัยร่วมกัน
Rufous-booted Racket-tail only
ไม่มี
Blue-headed Hummingbird only
ไม่มี
Song & Call Comparison
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Blue-headed Hummingbird
Melodic, rolling trill with bright bubbly quality; quick cheerful notes cascading pleasantly from prominent perch.
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.
Blue-headed Hummingbird
Found on Dominica and Martinique in the Lesser Antilles. Resident in montane forest and gardens on both islands.
สถานะการอนุรักษ์
Rufous-booted Racket-tail
Blue-headed Hummingbird
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.
Blue-headed Hummingbird
A small hummingbird (9-10 cm) found on Dominica and Martinique in the Lesser Antilles. Bright green plumage with a blue head (males). Nectarivore of montane forest and gardens. One of only two hummingbird species on each island.