White-bellied Mountain-gem vs Rufous-booted Racket-tail
Lampornis hemileucus مقارنةً بـ Ocreatus addae
Side-by-Side Comparison
| السمة | White-bellied Mountain-gem | Rufous-booted Racket-tail |
|---|---|---|
| الاسم العلمي | Lampornis hemileucus | Ocreatus addae |
| الرتبة | Caprimulgiformes | Caprimulgiformes |
| الفصيلة | Trochilidae | Trochilidae |
| حالة الحفاظ | Least Concern | Not Evaluated |
| الطول | — | — |
| طول الجناح | 12,5 cm (4.9 in) | — |
| الوزن | 5,6000000000000005 g (0.20 oz) | 3,0 g (0.11 oz) |
| النظام الغذائي | Nectarivore of montane forest understory and edges; visits Ericaceae and Salvia blooms. Gleans small insects … | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| عدد البيض في الوضع | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
White-bellied Mountain-gem
Melodic, two-note falling whistle; pure warm tones descending gently, given repeatedly from prominent perch.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
White-bellied Mountain-gem
Found in highland forest of Costa Rica and Panama on both slopes in cloud forest. 800–2,000 m elevation.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
حالة الحفاظ
White-bellied Mountain-gem
Rufous-booted Racket-tail
About These Birds
White-bellied Mountain-gem
A medium-sized hummingbird (11-12 cm) endemic to the highlands of Costa Rica and western Panama at 1,200-2,500 m. Males green with white belly. Nectarivore of cloud forest and forest edges. One of several mountain-gem species endemic to Central American highlands.
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.