Purple-crowned Fairy vs Rufous-booted Racket-tail
Heliothryx barroti เปรียบเทียบกับ Ocreatus addae
Side-by-Side Comparison
| คุณสมบัติ | Purple-crowned Fairy | Rufous-booted Racket-tail |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Heliothryx barroti | Ocreatus addae |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Trochilidae | Trochilidae |
| สถานะการอนุรักษ์ | Least Concern | Not Evaluated |
| ความยาว | — | — |
| กว้างปีก | 12.8 cm (5.0 in) | — |
| น้ำหนัก | 5.48 g (0.19 oz) | 3.0 g (0.11 oz) |
| อาหาร | Nectarivore specializing in high canopy flowers and bromeliads. Pierces flower bases to rob nectar; supplements … | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| จำนวนไข่ | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
ถิ่นที่อยู่อาศัยร่วมกัน
Purple-crowned Fairy only
ไม่มี
Rufous-booted Racket-tail only
ไม่มี
Song & Call Comparison
Purple-crowned Fairy
Buzzy, insect-like trill sustained monotonously; continuous high-frequency vibration with little dynamic range throughout.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Purple-crowned Fairy
Found in lowland humid forest from southern Mexico through Central America to western Ecuador and western Colombia. 0–800 m.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
สถานะการอนุรักษ์
Purple-crowned Fairy
Rufous-booted Racket-tail
How to Tell Them Apart
Purple-crowned Fairy
White-tailed Goldenthroat: males with glittering golden-green gorget; metallic green above; white-tipped tail; females green with 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
Purple-crowned Fairy
A slender, elegant hummingbird (11-13 cm) with a long, deeply forked tail. Green upperparts, purple crown, and immaculate white underparts. Found in humid forests from southern Mexico to western Ecuador. Nectarivore of forest canopy. Named fairy for its delicate, floating flight.
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.