Phylloscopus misoriensis
The Biak Leaf Warbler, *Phylloscopus misoriensis*, is a captivating, diminutive songbird endemic to Biak Island, Indonesia. Measuring approximately 10-11 cm in length, it exhibits a classic leaf warbler appearance with olive-green upperparts, a dull yellowish-white to pale yellow belly, and notably lacks wing-bars, which can be a key identification feature. Its most distinctive field mark is a prominent, bright yellow supercilium (eyebrow stripe) contrasting with a dark loral stripe extending...
This warbler is primarily found in lowland rainforests, forest edges, and secondary growth, favoring areas with a dense understory. It typically occurs from sea level up to elevations of around 700 meters.
The diet consists predominantly of small insects, their larvae, and spiders, which are gleaned from leaves and branches or caught in short aerial sallies.
The Biak Leaf Warbler is a highly active, diurnal passerine, constantly flitting through the canopy and sub-canopy layers of its forested habitat. Its foraging strategy involves agile gleaning, sallying, and hovering to snatch small insects and spiders from foliage and twigs. While territorial du...
The Biak Leaf Warbler is entirely endemic to Biak Island, one of the Schouten Islands located off the northern coast of West Papua, Indonesia. Its entire known breeding and year-round range is confined to the remaining lowland rainforests and secondary growth on this single island, spanning from ...
Near Threatened
- The Biak Leaf Warbler is a true island endemic, found nowhere else in the world except Biak Island, Indonesia. - Despite its small size, its bright yellow supercilium (eyebrow) makes it surprisingly conspicuous among the dark foliage of its forest home. - Unlike many widespread warbler species,...