Hook-billed Hermit vs Rufous-booted Racket-tail
Glaucis dohrnii so với Ocreatus addae
Side-by-Side Comparison
| Thuộc Tính | Hook-billed Hermit | Rufous-booted Racket-tail |
|---|---|---|
| Tên Khoa Học | Glaucis dohrnii | Ocreatus addae |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Trochilidae | Trochilidae |
| Tình Trạng Bảo Tồn | Vulnerable | Not Evaluated |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 12,6 cm (5.0 in) | — |
| Khối Lượng | 6,659999999999999 g (0.23 oz) | 3,0 g (0.11 oz) |
| Chế Độ Ăn | Nectarivore and occasional insectivore; visits heliconia, bromeliads, and Inga flowers while trap-lining territories. | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … |
| Số Trứng | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Hook-billed Hermit
Thin, penetrating whistle sustained briefly; followed by rapid buzzing trill, combination unique among syntopic hummingbirds.
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Geographic Range & Migration
Hook-billed Hermit
Found along the Atlantic coast of eastern Brazil from Bahia to Espírito Santo. Resident in coastal rainforest. Endangered; highly restricted range.
Rufous-booted Racket-tail
Found in cloud forests of northern Bolivia and adjacent Peru and Brazil at 400–1,400 m elevation.
Tình Trạng Bảo Tồn
Hook-billed Hermit
Rufous-booted Racket-tail
How to Tell Them Apart
Hook-billed Hermit
Bronze-green upperparts; cinnamon-rufous underparts with faint darker barring; pale buff supercilium stripe; rufous-buff tail with dark subterminal band; strongly curved bill; vulnerable Brazilian Atlantic forest endemic.
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
Hook-billed Hermit
A medium-sized hummingbird (12-13 cm) endemic to the Atlantic Forest of eastern Brazil. Bronze-green plumage with a hooked bill tip. Nectarivore of forest undergrowth, visiting Heliconia and bromeliads. Classified as Endangered due to severe habitat loss in Brazil's coastal forests.
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.