Sapphire-throated Hummingbird vs Rufous-booted Racket-tail
Chrysuronia coeruleogularis 对比 Ocreatus addae
Side-by-Side Comparison
| 属性 | Sapphire-throated Hummingbird | Rufous-booted Racket-tail |
|---|---|---|
| 学名 | Chrysuronia coeruleogularis | Ocreatus addae |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保护状况 | Least Concern | Not Evaluated |
| 体长 | — | — |
| 翼展 | — | — |
| 体重 | 4.133333333333333 g (0.15 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
Sapphire-throated Hummingbird
High, thin chip note with silvery sibilant ending; soft twittering sequence given quietly during active foraging.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Sapphire-throated Hummingbird
Found in tropical lowlands from Honduras to Venezuela and Ecuador. Resident in Caribbean lowland habitats.
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
Sapphire-throated Hummingbird
Rufous-booted Racket-tail
How to Tell Them Apart
Sapphire-throated Hummingbird
White-browed Coucal: white supercilium; brown-streaked above; rufous wings; pale buff below; long dark tail; red eye; bold eye stripe
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
Sapphire-throated Hummingbird
蓝喉蜂鸟(Chrysuronia coeruleogularis)是一种体长10-11厘米的中型蜂鸟，分布于从洪都拉斯到委内瑞拉和厄瓜多尔的热带低地。雄鸟具有深蓝色喉部和绿色上体。以花蜜为食，栖息于热带低地森林中。
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.