Rufous-booted Racket-tail vs Antillean Crested Hummingbird
Ocreatus addae 比較対象 Orthorhyncus cristatus
Side-by-Side Comparison
| 属性 | Rufous-booted Racket-tail | Antillean Crested Hummingbird |
|---|---|---|
| 学名 | Ocreatus addae | Orthorhyncus cristatus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Trochilidae | Trochilidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 9.4 cm (3.7 in) |
| 体重 | 3.0 g (0.11 oz) | 3.2600000000000002 g (0.11 oz) |
| 食性 | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Nectarivore of Lesser Antillean gardens and forest edges, visiting diverse native blooms. Supplements with small … |
| 一腹卵数 | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Antillean Crested Hummingbird
Thin, wavering sibilant trill; soft high-pitched buzzing with pulsing rhythm during slow courtship display.
Geographic Range & Migration
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
Antillean Crested Hummingbird
Widespread across the Lesser Antilles from Puerto Rico to Grenada. Resident on most eastern Caribbean islands.
保全状況
Rufous-booted Racket-tail
Antillean Crested Hummingbird
How to Tell Them Apart
Rufous-booted Racket-tail
Golden-bellied Starfrontlet: tiny; males with brilliant orange-gold belly; violet gorget; females green above; spotted buff below
Antillean Crested Hummingbird
Ruwenzori Turaco: rich green body; red facial skin; pale blue-green crest; crimson flight feathers; white streak below eye
About These Birds
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.
Antillean Crested Hummingbird
A tiny hummingbird (8-9 cm) widespread across the Lesser Antilles from Puerto Rico to Grenada. Males have a brilliant green crest. Dark plumage. Nectarivore of gardens, forests, and plantations. The most common and widespread hummingbird in the eastern Caribbean islands.