Rufous-booted Racket-tail vs Dusky Hummingbird
Ocreatus addae เปรียบเทียบกับ Phaeoptila sordida
Side-by-Side Comparison
| คุณสมบัติ | Rufous-booted Racket-tail | Dusky Hummingbird |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Ocreatus addae | Phaeoptila sordida |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Trochilidae | Trochilidae |
| สถานะการอนุรักษ์ | Not Evaluated | Least Concern |
| ความยาว | — | — |
| กว้างปีก | — | — |
| น้ำหนัก | 3.0 g (0.11 oz) | 3.9199999999999995 g (0.14 oz) |
| อาหาร | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Feeds on nectar from dry-forest flowers and flowering cacti in Mexico. Supplements diet with insects … |
| จำนวนไข่ | 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.
Dusky Hummingbird
High, crystalline notes in animated phrase; clear bright tones cascading smoothly in lively vocal 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.
Dusky Hummingbird
Endemic to arid regions of central and southern Mexico. Resident in dry scrub and thorn forest from Puebla to Oaxaca.
สถานะการอนุรักษ์
Rufous-booted Racket-tail
Dusky Hummingbird
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.
Dusky Hummingbird
A medium-sized hummingbird (10-11 cm) endemic to arid regions of central and southern Mexico. Dull olive-grey plumage, unusually drab for a hummingbird. Long, slightly decurved bill. Nectarivore of dry scrub and thorn forest. Adapted to xeric habitats.