Horned Sungem vs Rufous-booted Racket-tail
Heliactin bilophus เปรียบเทียบกับ Ocreatus addae
Side-by-Side Comparison
| คุณสมบัติ | Horned Sungem | Rufous-booted Racket-tail |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Heliactin bilophus | Ocreatus addae |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Trochilidae | Trochilidae |
| สถานะการอนุรักษ์ | Least Concern | Not Evaluated |
| ความยาว | — | — |
| กว้างปีก | 9.6 cm (3.8 in) | — |
| น้ำหนัก | 2.3 g (0.08 oz) | 3.0 g (0.11 oz) |
| อาหาร | Nectarivore of open savanna and cerrado, visiting small flowers of grasses and shrubs. Catches tiny … | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| จำนวนไข่ | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
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Horned Sungem only
Rufous-booted Racket-tail only
Song & Call Comparison
Horned Sungem
Melodic, rolling phrase with rich timbre; warm, musical notes tumbling loosely in pleasant sequence at midday.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Horned Sungem
Found in cerrado, caatinga, and dry open habitats across central Brazil from Maranhão to Minas Gerais and Mato Grosso. 300–1,100 m.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
สถานะการอนุรักษ์
Horned Sungem
Rufous-booted Racket-tail
How to Tell Them Apart
Horned Sungem
Green-tailed Goldenthroat: males with glittering emerald gorget and violet crown; females green above; pale buff with green-spotted flanks
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
Horned Sungem
A spectacular small hummingbird (10-11 cm) endemic to the cerrado of central Brazil. Males have two erect, horn-like iridescent violet-blue feather tufts projecting from the sides of the head. Green and white plumage. Nectarivore of cerrado flowers. The only member of its genus.
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.