Zosterops erythropleurus
The Chestnut-flanked White-eye (Zosterops erythropleurus) is a dainty and active passerine, measuring approximately 10-12 cm (4-4.7 inches) in length and weighing 8-11 grams. It is readily identified by its prominent, unbroken white eye-ring contrasting with an olive-green back and a clean white belly. Its most distinctive field mark, and the source of its name, are the bright chestnut patches on its flanks, which set it apart from other white-eyes in its range. The bill is dark and slender, ...
This species primarily inhabits temperate deciduous and mixed forests, open woodlands, and scrub, ranging from lowlands to foothills.
Its diet consists mainly of insects (especially caterpillars, aphids, and small beetles), supplemented by nectar from various flowers and small, soft fruits or berries.
The Chestnut-flanked White-eye is a highly active and gregarious species, especially outside the breeding season, forming large, often vocal flocks that frequently join mixed-species foraging parties. They are diurnal, spending their days actively gleaning insects from foliage, probing flowers fo...
The Chestnut-flanked White-eye has a distinct migratory pattern across East Asia. It breeds primarily in southeastern Siberia (Ussuriland), northeastern China (Manchuria), and North Korea, typically in temperate deciduous and mixed forests at lower elevations. During the non-breeding season, thes...
Least Concern
- The Chestnut-flanked White-eye is one of the most migratory species within the Zosteropidae family, which is unusual for white-eyes as many are resident or undertake only short movements. - Its distinctive chestnut flanks are a crucial identification feature, helping differentiate it from sever...