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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	—	—

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Size Comparison

Body Length

Snowy Owl 63.0 cm

Tawny Owl —

翼展

Snowy Owl 145.0 cm

Tawny Owl 53.0 cm

体重

Snowy Owl 2100.0 g

Tawny Owl 480.0 g

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Habitat Comparison

共同栖息地

无

Snowy Owl only

🌿 Wetland 🌾 Grassland 🏖️ Coastal

Tawny Owl only

🌲 Forest

Snowy Owl

Arctic tundra for breeding. Winters in open habitats resembling tundra, including prairies, airports, shorelines, and agricultural fields.

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Song & Call Comparison

Snowy Owl

鸣唱

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

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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

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保护状况

Vulnerable

Snowy Owl

Least Concern

Tawny Owl

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How to Tell Them Apart

Snowy Owl

羽毛

Adult males are almost entirely white. Females and immatures have dark brown barring and spotting. Yellow eyes and fully feathered feet.

喙

Dark hooked bill mostly hidden by dense facial feathering

Tawny Owl

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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。

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Related Comparisons

Great Horned Owl vs Snowy Owl

same-family

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