Tropical Screech-owl vs Snowy Owl

Megascops choliba compared with Bubo scandiacus

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Side-by-Side Comparison

Attribute Tropical Screech-owl Snowy Owl
Scientific Name Megascops choliba Bubo scandiacus
Order Strigiformes Strigiformes
Family Strigidae Strigidae
Conservation Status Least Concern Vulnerable
Length 63.0 cm (24.8 in)
Wingspan 32.6 cm (12.8 in) 145.0 cm (57.1 in)
Weight 133.66666666666666 g (4.71 oz) 2100.0 g (74.08 oz)
Diet -- Primarily lemmings on the breeding grounds, where a pair may consume over 1,500 per year. …
Clutch Size 1-4 3-14
Population Trend
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Size Comparison

Body Length
Tropical Screech-owl
Snowy Owl 63.0 cm
Wingspan
Tropical Screech-owl 32.6 cm
Snowy Owl 145.0 cm
Weight
Tropical Screech-owl 133.66666666666666 g
Snowy Owl 2100.0 g
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Habitat Comparison

Shared Habitats

None

Tropical Screech-owl only

None

Snowy Owl only

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

Tropical Screech-owl

Snowy Owl

Song

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

Tropical 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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Conservation Status

Least Concern

Tropical Screech-owl

Vulnerable

Snowy Owl

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How to Tell Them Apart

Tropical Screech-owl

Snowy Owl

Plumage

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

Bill

Dark hooked bill mostly hidden by dense facial feathering

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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.

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Related Comparisons

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