Rufous-booted Racket-tail vs Streak-throated Hermit
Ocreatus addae so với Phaethornis rupurumii
Side-by-Side Comparison
| Thuộc Tính | Rufous-booted Racket-tail | Streak-throated Hermit |
|---|---|---|
| Tên Khoa Học | Ocreatus addae | Phaethornis rupurumii |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Not Evaluated | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | — | 8,6 cm (3.4 in) |
| Khối Lượng | 3,0 g (0.11 oz) | 3,1 g (0.11 oz) |
| Chế Độ Ăn | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Nectarivore and insectivore; extracts nectar from trap-lining flowers and hawks small flying insects in forest … |
| Số Trứng | 2 | -- |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Rufous-booted Racket-tail only
Không
Streak-throated Hermit only
Không
Song & Call Comparison
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Streak-throated Hermit
High, thin peep barely audible beyond few metres; delicate single note repeated softly with long intervals in between.
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.
Streak-throated Hermit
Found in the Guiana Shield from Venezuela and Guyana south through Amazonia to Bolivia. Resident in lowland forest along streams and rivers.
Tình Trạng Bảo Tồn
Rufous-booted Racket-tail
Streak-throated Hermit
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
Streak-throated Hermit
Tiny; green-bronze upperparts; buff underparts with fine dark streaking on throat; pale supercilium; white-tipped central tail feathers; Guiana Shield species; streaked throat pattern distinguishes from other small hermits.
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.
Streak-throated Hermit
A small hermit hummingbird (10-11 cm) found in humid forests and forest edges of the Guiana Shield and southern Venezuela. Green plumage with streak-patterned throat and rufous underparts. Nectarivore of forest undergrowth. Often confused with Little Hermit in the field.