The giant white-eye, or Palau greater white-eye is a species of bird in the family Zosteropidae. It is monotypic within the genus Megazosterops. It is endemic to Palau, where its natural habitat is tropical moist lowland forest. The species is currently classified as Near Threatened by the IUCN due to likely habitat loss and the possibility of the establishment of the invasive Brown tree snake on the island.The Giant White-eye is13-14cm large. It has a pale yellowish supercilium from the eye, widening backwards. Iris, greyish to dark brown. Narrow pale-yellow eye ring. Dark loral area leading to dark greying ear-coverts with pale yellow mottling. Dark fulvous olive over, crown feathers, greyish towards bases. Slightly buffy flanks. Legs tawny or olive-green with yellowish soles. It has a mottled appearance.
Region
Micronesia
Typical Environment
Found only within the Palau archipelago, primarily in tropical moist lowland forest. It uses both primary and mature secondary forest and can occur along forest edges and in wooded limestone islands. The species forages mostly in the midstory to canopy where foliage is dense. It generally avoids highly urbanized areas and open agricultural land. Habitat continuity is important for its movements and foraging.
Altitude Range
Sea level to 240 m
Climate Zone
Tropical
Ease of Keeping
Beginner friendly: 1/5
Also called the Palau greater white-eye, this species is the sole member of its genus, reflecting its distinct size and traits among white-eyes. It is confined to Palau’s lowland forests and is potentially vulnerable to invasive predators like the brown tree snake. It forages actively in small groups and likely plays roles in insect control and seed dispersal.
Temperament
social and active
Flight Pattern
short rapid wingbeats
Social Behavior
Often travels in small, loose flocks outside the breeding season and may join mixed-species foraging groups. During breeding, forms pairs that defend small territories. Nests are likely neat cup structures placed in shrubs or small trees, with both parents participating in care. Fledglings remain near adults while learning to forage.
Migratory Pattern
Resident
Song Description
Song consists of thin, high-pitched trills and twitters delivered in short, lively sequences. Calls are soft contact notes used to keep flock cohesion while moving through foliage.
