Rufous-booted Racket-tail vs Grey-chinned Hermit
Ocreatus addae so với Phaethornis griseogularis
Side-by-Side Comparison
| Thuộc Tính | Rufous-booted Racket-tail | Grey-chinned Hermit |
|---|---|---|
| Tên Khoa Học | Ocreatus addae | Phaethornis griseogularis |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Not Evaluated | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | — | 6,9 cm (2.7 in) |
| Khối Lượng | 3,0 g (0.11 oz) | 2,4166666666666665 g (0.09 oz) |
| Chế Độ Ăn | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Nectarivore visiting Heliconia, Costus, and banana flowers along forest understory routes. Takes small insects opportunistically. |
| Số Trứng | 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.
Grey-chinned Hermit
Sharp, high chip followed by buzzy rattling trill; two-part call with emphatic onset and rough, cascading continuation.
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.
Grey-chinned Hermit
Found along the Andes foothills and adjacent lowlands in Colombia, Ecuador, and Peru at 300–1,800 m elevation.
Tình Trạng Bảo Tồn
Rufous-booted Racket-tail
Grey-chinned 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
Grey-chinned Hermit
Sooty Barbthroat: dark brownish-gray overall; pale buff supercilium; rufous-washed underparts; white-tipped tail feathers; decurved bill
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.
Grey-chinned Hermit
A small hermit hummingbird (9-10 cm) found in Andean foothill forests from Colombia to Peru at 500-2,000 m elevation. Grey chin, green plumage, and rufous underparts. Nectarivore of forest undergrowth. Taxonomy complex, with several subspecies sometimes treated as separate species.