Blue-throated Mountain-gem vs Rufous-booted Racket-tail
Lampornis clemenciae เปรียบเทียบกับ Ocreatus addae
Side-by-Side Comparison
| คุณสมบัติ | Blue-throated Mountain-gem | Rufous-booted Racket-tail |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Lampornis clemenciae | Ocreatus addae |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Trochilidae | Trochilidae |
| สถานะการอนุรักษ์ | Least Concern | Not Evaluated |
| ความยาว | — | — |
| กว้างปีก | 14.7 cm (5.8 in) | — |
| น้ำหนัก | 7.25 g (0.26 oz) | 3.0 g (0.11 oz) |
| อาหาร | Nectarivore of US and Mexican highland forest; visits diverse flowers at medium to high elevation. … | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| จำนวนไข่ | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
ถิ่นที่อยู่อาศัยร่วมกัน
Blue-throated Mountain-gem only
ไม่มี
Rufous-booted Racket-tail only
ไม่มี
Song & Call Comparison
Blue-throated Mountain-gem
Rough, nasal chatter with emphatic delivery; series of coarse buzzy notes audible from considerable distance.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Blue-throated Mountain-gem
Found from the mountains of southern Arizona south through Mexico to Honduras in pine-oak forest. 1,400–3,500 m.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
สถานะการอนุรักษ์
Blue-throated Mountain-gem
Rufous-booted Racket-tail
How to Tell Them Apart
Blue-throated Mountain-gem
Calliope Hummingbird (alt): males with iridescent blue gorget; metallic green body; white pectoral tufts; females green; 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
Blue-throated Mountain-gem
A large hummingbird (12-13 cm) found in mountain canyons of the southwestern United States and Mexico. Males have a brilliant blue throat gorget. The largest hummingbird breeding in the US. Nectarivore of mountain meadows and garden feeders. Known for its loud, squeaky call.
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.