Great Horned Owl vs Bare-shanked Screech-owl
Bubo virginianus 比較対象 Megascops clarkii
Side-by-Side Comparison
| 属性 | Great Horned Owl | Bare-shanked Screech-owl |
|---|---|---|
| 学名 | Bubo virginianus | Megascops clarkii |
| 目 | Strigiformes | Strigiformes |
| 科 | Strigidae | Strigidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 55.0 cm (21.7 in) | — |
| 翼開長 | 127.0 cm (50.0 in) | 36.2 cm (14.3 in) |
| 体重 | 1400.0 g (49.38 oz) | 155.8 g (5.50 oz) |
| 食性 | Extremely diverse — mammals (rabbits, skunks, rodents), birds (including other raptors), reptiles, amphibians, and fish. … | -- |
| 一腹卵数 | 1-4 | -- |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
共通生息地
Great Horned Owl only
Bare-shanked Screech-owl only
None
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
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.
Bare-shanked Screech-owl
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.
Bare-shanked Screech-owl
保全状況
Great Horned Owl
Bare-shanked Screech-owl
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
Bare-shanked Screech-owl
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.
Bare-shanked Screech-owl
コスタリカからコロンビアにかけての中米・南米北部の山地森林に生息するバークドスクリーチオウル。体長22〜24cm。樹皮に溶け込む暗褐色の羽毛が特徴的。夜行性で昆虫を主食とする。低危険種。