Rufous-booted Racket-tail vs Allen's Hummingbird
Ocreatus addae ile kıyaslandığında Selasphorus sasin
Side-by-Side Comparison
| Özellik | Rufous-booted Racket-tail | Allen's Hummingbird |
|---|---|---|
| Bilimsel Ad | Ocreatus addae | Selasphorus sasin |
| Takım | Caprimulgiformes | Caprimulgiformes |
| Familya | Trochilidae | Trochilidae |
| Koruma Durumu | Not Evaluated | Least Concern |
| Uzunluk | — | — |
| Kanat Açıklığı | — | 8,1 cm (3.2 in) |
| Ağırlık | 3,0 g (0.11 oz) | 3,1500000000000004 g (0.11 oz) |
| Beslenme | Nectarivore of Bolivian and Peruvian cloud forest; visits Ericaceae and bromeliads. Gleans small insects from … | Feeds on nectar from coastal sage scrub and forest flowers in California. Supplements diet with … |
| Kuluçka Büyüklüğü | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Ortak Yaşam Alanları
Rufous-booted Racket-tail only
Hiçbiri
Allen's Hummingbird only
Hiçbiri
Song & Call Comparison
Rufous-booted Racket-tail
Deep, resonant hum barely audible; extremely low vibration barely perceptible during hovering near high-altitude flowers.
Allen's Hummingbird
Deep, resonant churring trill; prolonged low buzzing sound carrying well across broad coastal mangroves.
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.
Allen's Hummingbird
Breeds along the Pacific coast from Oregon to southern California. Partial migrant; some Channel Islands populations resident year-round.
Koruma Durumu
Rufous-booted Racket-tail
Allen's 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
Allen's Hummingbird
Fiery-throated Hummingbird (alt): males with brilliant multicolored gorget; metallic green above; females duller; pale buff below
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.
Allen's Hummingbird
A small hummingbird (8-9 cm) breeding along the Pacific coast from Oregon to southern California. Males have an orange-red throat and rufous flanks. Closely related to Rufous Hummingbird. Partial migrant; some populations resident on Channel Islands. Named after Thomas Allen.