Great Horned Owl vs シロエリハゲワシ
Bubo virginianus 比較対象 Gyps fulvus
Side-by-Side Comparison
| 属性 | Great Horned Owl | シロエリハゲワシ |
|---|---|---|
| 学名 | Bubo virginianus | Gyps fulvus |
| 目 | Strigiformes | Accipitriformes |
| 科 | Strigidae | Accipitridae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 55.0 cm (21.7 in) | 100.0 cm (39.4 in) |
| 翼開長 | 127.0 cm (50.0 in) | 260.0 cm (102.4 in) |
| 体重 | 1400.0 g (49.38 oz) | 8500.0 g (299.83 oz) |
| 食性 | Extremely diverse — mammals (rabbits, skunks, rodents), birds (including other raptors), reptiles, amphibians, and fish. … | Exclusively carrion, primarily large mammal carcasses. Feeds communally, with groups of vultures able to strip … |
| 一腹卵数 | 1-4 | 1 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
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.
シロエリハゲワシ
Mountains, cliffs, and open grasslands. Nests on cliff ledges in colonies. Requires thermals for soaring flight.
Song & Call Comparison
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.
シロエリハゲワシ
Generally silent; hisses and grunts at carrion with other vultures. Gives low croaking 'arrr' near nest. At colonies produces cackling and grunting — not melodic vocalizations.
Geographic Range & Migration
Great Horned Owl
North and South America from subarctic Canada to Tierra del Fuego. One of the most widespread owls in the Americas.
シロエリハゲワシ
Southern Europe, North Africa, the Middle East, and Central Asia. Resident in most of its range.
保全状況
Great Horned Owl
シロエリハゲワシ
How to Tell Them Apart
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
シロエリハゲワシ
Tawny-brown body with darker flight feathers. White neck ruff and bare greyish head. Long broad wings held flat when soaring.
Hooked yellowish bill adapted for tearing carrion
About These Birds
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.
シロエリハゲワシ
The griffon vulture is one of Europe's largest flying birds and a crucial scavenger in Mediterranean ecosystems. These social birds nest in large cliff colonies and can soar for hours using thermals without flapping. Vulture populations faced a crisis from the veterinary drug diclofenac, which proved fatal when consumed through contaminated carcasses.