Violet-crowned Hummingbird vs Rufous-booted Racket-tail
Leucolia violiceps 对比 Ocreatus addae
Side-by-Side Comparison
| 属性 | Violet-crowned Hummingbird | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Leucolia violiceps | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Not Evaluated |
| 体长 | — | — |
| 翼展 | — | — |
| 体重 | 5.433333333333333 g (0.19 oz) | 3.0 g (0.11 oz) |
| 食性 | Feeds on floral nectar in forest understory, hovering at Heliconia and bromeliads. Supplements with spiders … | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| 产卵数 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Violet-crowned Hummingbird
Thin, reedy chip with soft quality; barely audible staccato note given from dense vegetative cover. Vocalization pattern typical of this species in its native habitat.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Violet-crowned Hummingbird
Found in arid to semi-humid habitats from the southwestern United States to central Mexico. Partial migrant.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
保护状况
Violet-crowned Hummingbird
Rufous-booted Racket-tail
About These Birds
Violet-crowned Hummingbird
A medium-sized hummingbird (10-11 cm) found in arid to semi-humid habitats from the southwestern US to central Mexico. Males have a white breast and violet-blue crown. Nectarivore of oak woodland, desert oases, and gardens. Visits feeders in the southwestern US.
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.