Violet-throated Metaltail vs Rufous-booted Racket-tail
Metallura baroni เปรียบเทียบกับ Ocreatus addae
Side-by-Side Comparison
| คุณสมบัติ | Violet-throated Metaltail | Rufous-booted Racket-tail |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Metallura baroni | Ocreatus addae |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Trochilidae | Trochilidae |
| สถานะการอนุรักษ์ | Vulnerable | Not Evaluated |
| ความยาว | — | — |
| กว้างปีก | 11.4 cm (4.5 in) | — |
| น้ำหนัก | 4.4 g (0.16 oz) | 3.0 g (0.11 oz) |
| อาหาร | Nectarivore of Ecuadorian treeline vegetation; specialized for Ericaceae blooms above 3000 m. Catches 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
Violet-throated Metaltail only
Rufous-booted Racket-tail only
ไม่มี
Song & Call Comparison
Violet-throated Metaltail
Melodic, flute-like phrase with clear quality; smooth notes flowing pleasantly in quiet sequence at forest edge.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Violet-throated Metaltail
Endemic to a tiny area in the Cajas plateau region of southwestern Ecuador. 3,000–4,200 m. Critically endangered.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
สถานะการอนุรักษ์
Violet-throated Metaltail
Rufous-booted Racket-tail
How to Tell Them Apart
Violet-throated Metaltail
Green-throated Mountain-gem: males with glittering green gorget; metallic green above; white underparts; females green above; spotted
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
Violet-throated Metaltail
A small hummingbird (9-10 cm) endemic to the Andes of southern Ecuador at 2,500-3,500 m. Males have a violet-purple throat. Nectarivore of cloud forest and páramo edges. Classified as Endangered due to limited range. Named after Baron Erich von Baroni.
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.