Japanese White-eye vs Green-backed White-eye

Zosterops japonicus compared with Zosterops xanthochroa

Side-by-Side Comparison

Attribute Japanese White-eye Green-backed White-eye
Scientific Name Zosterops japonicus Zosterops xanthochroa
Order Passeriformes Passeriformes
Family Zosteropidae Zosteropidae
Conservation Status Least Concern Least Concern
Length 11.5 cm (4.5 in)
Wingspan 17.0 cm (6.7 in) 12.1 cm (4.8 in)
Weight 11.0 g (0.39 oz) 10.25 g (0.36 oz)
Diet Insects, nectar, and fruit. Active gleaner that flits through foliage and visits flowers. Important pollinator … --
Clutch Size 2-6 2-4
Population Trend

Size Comparison

Body Length
Japanese White-eye 11.5 cm
Green-backed White-eye
Wingspan
Japanese White-eye 17.0 cm
Green-backed White-eye 12.1 cm
Weight
Japanese White-eye 11.0 g
Green-backed White-eye 10.25 g

Habitat Comparison

Shared Habitats

Japanese White-eye only

None

Green-backed White-eye only

None

Japanese White-eye

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

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.

Green-backed White-eye

Geographic Range & Migration

Japanese White-eye

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

Green-backed White-eye

Conservation Status

Least Concern

Japanese White-eye

Least Concern

Green-backed White-eye

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

Green-backed White-eye

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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