European Roller vs Great Horned Owl
Coracias garrulus 比較対象 Bubo virginianus
Side-by-Side Comparison
| 属性 | European Roller | Great Horned Owl |
|---|---|---|
| 学名 | Coracias garrulus | Bubo virginianus |
| 目 | Coraciiformes | Strigiformes |
| 科 | Coraciidae | Strigidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 31.0 cm (12.2 in) | 55.0 cm (21.7 in) |
| 翼開長 | 66.0 cm (26.0 in) | 127.0 cm (50.0 in) |
| 体重 | 130.0 g (4.59 oz) | 1400.0 g (49.38 oz) |
| 食性 | Large insects, especially beetles, grasshoppers, and crickets. Also takes small reptiles, frogs, and scorpions. Hunts … | Extremely diverse — mammals (rabbits, skunks, rodents), birds (including other raptors), reptiles, amphibians, and fish. … |
| 一腹卵数 | 3-6 | 1-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
European Roller
Warm, dry, open country with scattered trees and nest holes. Breeds in tree cavities, earth banks, and nest boxes.
Great Horned Owl
Diverse habitats including forests, deserts, swamps, urban parks, and suburban areas. Nests in tree hollows, cliff ledges, and abandoned nests of other large birds.
Song & Call Comparison
European Roller
A harsh, grating 'rack-rack' or 'quarrk' in flight. Gives a variety of sharp nasal calls at the nest. Not melodic; primary vocalizations are alarm and contact calls.
Great Horned Owl
Deep, resonant 'who-who-who-who-ooo': the classic 'hoo-h'HOO-hoo-hoo' territorial duet of a mated pair. Booms at dusk. Female pitch slightly higher than male.
Geographic Range & Migration
European Roller
Southern and eastern Europe, Central Asia, and North Africa. Winters in sub-Saharan Africa.
Great Horned Owl
North and South America from subarctic Canada to Tierra del Fuego. One of the most widespread owls in the Americas.
保全状況
European Roller
Great Horned Owl
How to Tell Them Apart
European Roller
Turquoise-blue head, breast, and tail. Chestnut-brown back. Vivid ultramarine blue and black wing patches visible in flight.
Short, stout, dark hooked bill
Great Horned Owl
Mottled grey-brown plumage with heavy dark barring. Prominent ear tufts, yellow eyes, and a white throat patch give a fierce expression.
Dark grey-black hooked bill almost hidden by facial disc feathers
About These Birds
European Roller
ヨーロッパで最も色彩豊かな鳥の一つで、求愛時にローリングと呼ばれる独特の空中飛翔を行う。
Great Horned Owl
The great horned owl is the most powerful and widespread owl in the Americas, earning the nickname tiger of the sky. It is one of the earliest nesting birds, often laying eggs in January when snow still covers the ground. Great horned owls are fierce predators, regularly taking prey up to three times their own weight.