Plain-capped Starthroat vs Rufous-booted Racket-tail
Heliomaster constantii 对比 Ocreatus addae
Side-by-Side Comparison
| 属性 | Plain-capped Starthroat | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Heliomaster constantii | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Not Evaluated |
| 体长 | — | — |
| 翼展 | 12.5 cm (4.9 in) | — |
| 体重 | 7.375 g (0.26 oz) | 3.0 g (0.11 oz) |
| 食性 | Nectarivore of Mexican and Central American dry and semi-open habitats. Visits large flowers; catches insects … | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| 产卵数 | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Plain-capped Starthroat
High, thin twittering barely audible; delicate cascade of minute notes, poorly documented vocal repertoire.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Plain-capped Starthroat
Found from northwestern Mexico south through Central America to northwestern Costa Rica in dry forest. Sea level to 1,800 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
Plain-capped Starthroat
Rufous-booted Racket-tail
About These Birds
Plain-capped Starthroat
普通星蜂鸟分布于墨西哥至哥斯达黎加的中美洲干旱林和开阔地带。雄鸟喉部具闪光紫色，体型较大，喙长直。以花蜜为主食，常在高大的花序上觅食。雄鸟有高调的求偶展示，鸣声响亮。
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.