Green-tailed Trainbearer vs Rufous-booted Racket-tail
Lesbia nuna 比較対象 Ocreatus addae
Side-by-Side Comparison
| 属性 | Green-tailed Trainbearer | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Lesbia nuna | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Least Concern | Not Evaluated |
| 体長 | — | — |
| 翼開長 | 10.3 cm (4.1 in) | — |
| 体重 | 3.733333333333333 g (0.13 oz) | 3.0 g (0.11 oz) |
| 食性 | Nectarivore of montane hedgerows and scrub; forages at diverse shrub flowers. Catches small insects in … | 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
Green-tailed Trainbearer
Melodic, rolling phrase with liquid quality; warm bubbly notes tumbling loosely in pleasant continuous musical sequence.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Green-tailed Trainbearer
Widespread in open Andean habitats from Colombia south through Ecuador, Peru, and Bolivia. 1,500–4,000 m elevation.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
保全状況
Green-tailed Trainbearer
Rufous-booted Racket-tail
How to Tell Them Apart
Green-tailed Trainbearer
Chiribiqute Emerald: tiny; males with iridescent violet gorget; metallic bronze-green above; white underparts; females green with spots
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
Green-tailed Trainbearer
A medium-sized hummingbird (10 cm body + tail in males) found in Andean highlands from Venezuela to Peru at 2,000-3,800 m. Males have long green tail streamers, shorter than Black-tailed Trainbearer. Nectarivore of scrubby hillsides, gardens, and cloud forest edges.
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.