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Side-by-Side Comparison

属性	Bermuda Saw-whet Owl	Snowy Owl
学名	Aegolius gradyi	Bubo scandiacus
目	Strigiformes	Strigiformes
科	Strigidae	Strigidae
保护状况	Extinct	Vulnerable
体长	—	63.0 cm (24.8 in)
翼展	—	145.0 cm (57.1 in)
体重	—	2100.0 g (74.08 oz)
食性	--	Primarily lemmings on the breeding grounds, where a pair may consume over 1,500 per year. …
产卵数	--	3-14
Population Trend	—	—

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Size Comparison

Body Length

Bermuda Saw-whet Owl —

Snowy Owl 63.0 cm

翼展

Bermuda Saw-whet Owl —

Snowy Owl 145.0 cm

体重

Bermuda Saw-whet Owl —

Snowy Owl 2100.0 g

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Habitat Comparison

共同栖息地

无

Bermuda Saw-whet Owl only

🌲 Forest

Snowy Owl only

🌿 Wetland 🌾 Grassland 🏖️ Coastal

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

Bermuda Saw-whet Owl

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.

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Geographic Range & Migration

Bermuda Saw-whet Owl

Snowy Owl

Circumpolar Arctic for breeding. Irruptive winter movements bring birds south to the northern United States, Europe, and Asia.

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保护状况

Extinct

Bermuda Saw-whet Owl

Vulnerable

Snowy Owl

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How to Tell Them Apart

Bermuda Saw-whet Owl

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

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About These Birds

Bermuda Saw-whet Owl

百慕大锯木鸮（Aegolius gradyi）曾是一种小型猫头鹰，特产于百慕大，于17世纪因人类定居和引进物种灭绝。属鸱鸮科（Strigidae），仅凭化石骨骼得知其存在。

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.

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Related Comparisons

Great Horned Owl vs Snowy Owl

same-family

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