Black-eared Fairy vs Rufous-booted Racket-tail
Heliothryx auritus 对比 Ocreatus addae
Side-by-Side Comparison
| 属性 | Black-eared Fairy | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Heliothryx auritus | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Not Evaluated |
| 体长 | — | — |
| 翼展 | 13.0 cm (5.1 in) | — |
| 体重 | 5.15 g (0.18 oz) | 3.0 g (0.11 oz) |
| 食性 | Nectarivore robbing nectar from large flowers in forest canopy. Gleans small spiders and soft-bodied insects … | 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
Black-eared Fairy
Soft, liquid notes in gentle cascade; flowing sequence of mellow tones with subtle tremolo in misty montane forest.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Black-eared Fairy
Widespread in Amazonian lowlands from the Guianas south through Brazil and west to Colombia, Ecuador, Peru, and Bolivia. 0–700 m.
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
Black-eared Fairy
Rufous-booted Racket-tail
How to Tell Them Apart
Black-eared Fairy
Blue-chinned Sapphire: males with shining blue chin; metallic green above; white pectoral tufts; females green above with blue-spotted throat
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
Black-eared Fairy
黑耳仙蜂鸟分布于哥伦比亚至秘鲁和巴西的热带雨林。雄鸟耳部具黑色斑块，体羽闪亮绿色，尾长分叉，腹部白色。以花蜜为主食，栖息于低地雨林的冠层。常悬停在花朵旁，或直接刺穿花基盗蜜。
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.