White-throated Hummingbird vs Rufous-booted Racket-tail
Leucochloris albicollis 比較対象 Ocreatus addae
Side-by-Side Comparison
| 属性 | White-throated Hummingbird | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Leucochloris albicollis | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Not Evaluated |
| 体長 | — | — |
| 翼開長 | 11.8 cm (4.6 in) | — |
| 体重 | 5.95 g (0.21 oz) | 3.0 g (0.11 oz) |
| 食性 | Visits flowering trees and epiphytes for nectar; supplements diet with small arthropods including gnats, midges, … | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| 一腹卵数 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
White-throated Hummingbird
Melodic, ascending three-note phrase; clear flute-like tones rising smoothly in pleasant morning territorial song.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
White-throated Hummingbird
Found from eastern Brazil through Uruguay to Argentina and Paraguay. Resident in Atlantic Forest and cerrado edges.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
保全状況
White-throated Hummingbird
Rufous-booted Racket-tail
About These Birds
White-throated Hummingbird
A medium-sized hummingbird (10-11 cm) found from eastern Brazil through Uruguay to Argentina and Paraguay. Green plumage with a clean white throat and breast. Nectarivore of Atlantic Forest edges, cerrado, and gardens. Common in southeastern South America.
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.