Mangrove Hummingbird vs Rufous-booted Racket-tail
Amazilia boucardi 对比 Ocreatus addae
Side-by-Side Comparison
| 属性 | Mangrove Hummingbird | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Amazilia boucardi | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Endangered | Not Evaluated |
| 体长 | — | — |
| 翼展 | 10.9 cm (4.3 in) | — |
| 体重 | 4.5 g (0.16 oz) | 3.0 g (0.11 oz) |
| 食性 | Critically endangered; feeds on mangrove flowers in Costa Rica and supplements with small insects and … | 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
Mangrove Hummingbird
Rich, melodic churring with complex cadence; warm resonant notes building in deliberate sequence near mangroves.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Mangrove Hummingbird
Endemic to the Pacific coast of Costa Rica, restricted to mangrove forests. Classified as Endangered.
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
Mangrove Hummingbird
Rufous-booted Racket-tail
How to Tell Them Apart
Mangrove Hummingbird
Coppery-tailed Coucal: dark brown above; rufous wings; pale below; coppery-glossed tail; red eye; tail iridescence distinctive
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
Mangrove Hummingbird
沼地蜂鸟（Amazilia boucardi），体长10-11厘米，特产于哥斯达黎加太平洋沿岸，局限分布于红树林生境。属蜂鸟科（Trochilidae），是全球分布最局限的蜂鸟之一，濒危物种，红树林的破坏对其构成严重威胁。
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.