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Side-by-Side Comparison

属性	Balsas Screech-owl	Snowy Owl
学名	Megascops seductus	Bubo scandiacus
目	Strigiformes	Strigiformes
科	Strigidae	Strigidae
保全状況	Least Concern	Vulnerable
体長	—	63.0 cm (24.8 in)
翼開長	34.8 cm (13.7 in)	145.0 cm (57.1 in)
体重	160.75 g (5.67 oz)	2100.0 g (74.08 oz)
食性	--	Primarily lemmings on the breeding grounds, where a pair may consume over 1,500 per year. …
一腹卵数	1	3-14
Population Trend	—	—

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Size Comparison

Body Length

Balsas Screech-owl —

Snowy Owl 63.0 cm

翼開長

Balsas Screech-owl 34.8 cm

Snowy Owl 145.0 cm

体重

Balsas Screech-owl 160.75 g

Snowy Owl 2100.0 g

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Habitat Comparison

共通生息地

None

Balsas Screech-owl only

🌲 Forest 🏜️ Desert

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

Balsas Screech-owl

Snowy Owl

さえずり

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

Balsas Screech-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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保全状況

Least Concern

Balsas Screech-owl

Vulnerable

Snowy Owl

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How to Tell Them Apart

Balsas Screech-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.

くちばし

Dark hooked bill mostly hidden by dense facial feathering

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About These Birds

Balsas Screech-owl

メキシコ西部のコリマ州に生息するレスカニョンスクリーチオウル。体長21〜23cm。褐色で縞模様が特徴的。メキシコ固有の希少フクロウで生息地が非常に限定的。絶滅危惧種。

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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