Snowy Owl vs Tawny Owl
Bubo scandiacus 对比 Strix aluco
Side-by-Side Comparison
| 属性 | Snowy Owl | Tawny Owl |
|---|---|---|
| 学名 | Bubo scandiacus | Strix aluco |
| 目 | Strigiformes | Strigiformes |
| 科 | Strigidae | Strigidae |
| 保护状况 | Vulnerable | Least Concern |
| 体长 | 63.0 cm (24.8 in) | — |
| 翼展 | 145.0 cm (57.1 in) | 53.0 cm (20.9 in) |
| 体重 | 2100.0 g (74.08 oz) | 480.0 g (16.93 oz) |
| 食性 | Primarily lemmings on the breeding grounds, where a pair may consume over 1,500 per year. … | -- |
| 产卵数 | 3-14 | 2-9 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Snowy Owl
Arctic tundra for breeding. Winters in open habitats resembling tundra, including prairies, airports, shorelines, and agricultural fields.
Song & Call Comparison
Snowy Owl
Male gives a deep booming hoot 'hooooo' and a rising 'hoo-hoo' series. Also barks sharply when alarmed. Quieter than many owls; silent during long Arctic winter hunts.
Tawny Owl
Geographic Range & Migration
Snowy Owl
Circumpolar Arctic for breeding. Irruptive winter movements bring birds south to the northern United States, Europe, and Asia.
Tawny Owl
保护状况
Snowy Owl
Tawny Owl
How to Tell Them Apart
Snowy Owl
Adult males are almost entirely white. Females and immatures have dark brown barring and spotting. Yellow eyes and fully feathered feet.
Dark hooked bill mostly hidden by dense facial feathering
Tawny Owl
About These Birds
Snowy Owl
The snowy owl is the heaviest North American owl and one of the most charismatic Arctic birds. Unlike most owls, it is largely diurnal, necessitated by the continuous daylight of Arctic summers. Snowy owl irruptions — periodic mass southward movements — are tied to lemming population cycles.
Tawny Owl
灰林鸮（约500克）是欧洲最常见的猫头鹰，广布于欧洲和亚洲的林地。以其「呼—呼」叫声著名，常于夜间鸣叫。以小型哺乳动物为主食，亦捕食鸟类、青蛙和无脊椎动物。无危；种群数量庞大，适应城郊林地，在欧洲各地均较常见。