Japanese White-eye vs Long-billed White-eye

Zosterops japonicus compared with Rukia longirostra

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Side-by-Side Comparison

Attribute Japanese White-eye Long-billed White-eye
Scientific Name Zosterops japonicus Rukia longirostra
Order Passeriformes Passeriformes
Family Zosteropidae Zosteropidae
Conservation Status Least Concern Near Threatened
Length 11.5 cm (4.5 in)
Wingspan 17.0 cm (6.7 in) 13.8 cm (5.4 in)
Weight 11.0 g (0.39 oz) 17.9 g (0.63 oz)
Diet Insects, nectar, and fruit. Active gleaner that flits through foliage and visits flowers. Important pollinator … --
Clutch Size 2-6 --
Population Trend
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Size Comparison

Body Length
Japanese White-eye 11.5 cm
Long-billed White-eye
Wingspan
Japanese White-eye 17.0 cm
Long-billed White-eye 13.8 cm
Weight
Japanese White-eye 11.0 g
Long-billed White-eye 17.9 g
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Habitat Comparison

Shared Habitats

Japanese White-eye only

None

Long-billed White-eye only

None

Japanese White-eye

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

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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.

Long-billed White-eye

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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.

Long-billed White-eye

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Conservation Status

Least Concern

Japanese White-eye

Near Threatened

Long-billed White-eye

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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

Long-billed White-eye

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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.

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Related Comparisons

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