Japanese White-eye vs Snowy Owl

Zosterops japonicus compared with Bubo scandiacus

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Side-by-Side Comparison

Attribute Japanese White-eye Snowy Owl
Scientific Name Zosterops japonicus Bubo scandiacus
Order Passeriformes Strigiformes
Family Zosteropidae Strigidae
Conservation Status Least Concern Vulnerable
Length 11.5 cm (4.5 in) 63.0 cm (24.8 in)
Wingspan 17.0 cm (6.7 in) 145.0 cm (57.1 in)
Weight 11.0 g (0.39 oz) 2100.0 g (74.08 oz)
Diet Insects, nectar, and fruit. Active gleaner that flits through foliage and visits flowers. Important pollinator … Primarily lemmings on the breeding grounds, where a pair may consume over 1,500 per year. …
Clutch Size 2-6 3-14
Population Trend
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Size Comparison

Body Length
Japanese White-eye 11.5 cm
Snowy Owl 63.0 cm
Wingspan
Japanese White-eye 17.0 cm
Snowy Owl 145.0 cm
Weight
Japanese White-eye 11.0 g
Snowy Owl 2100.0 g
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Habitat Comparison

Shared Habitats

None

Japanese White-eye only

Snowy Owl only

Japanese White-eye

Broadleaf evergreen forests, gardens, parks, and suburban areas. Highly adaptable and common in East Asian gardens.

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

Japanese White-eye

Song

Sweet, high-pitched 'tsee-tsee-tsee' whistle and soft melodic warbling. Flocks produce a continuous tinkling chorus. Alarm is a sharper 'tset'. Song is gentle and rhythmic.

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

Japanese White-eye

East Asia including Japan, China, Korea, Taiwan, Vietnam, and the Philippines. Introduced to Hawaii and other Pacific islands.

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

Japanese White-eye

Vulnerable

Snowy Owl

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How to Tell Them Apart

Japanese White-eye

Plumage

Olive-green upperparts with a bright white eye-ring. Yellow throat and undertail coverts. Greyish-white belly.

Bill

Thin, pointed, slightly decurved dark bill

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

Japanese White-eye

The Japanese white-eye is a familiar garden bird across East Asia, beloved in Japan where it is called mejiro. These sociable birds form flocks outside the breeding season and are important pollinators of plum and cherry blossoms. Unfortunately, introduced populations in Hawaii have become invasive, competing with native honeycreepers.

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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