Phylloscopus nigrorum
The Negros Leaf Warbler (Phylloscopus nigrorum) is a small, enigmatic passerine endemic to the Western Visayas islands of the Philippines, distinguished by its subtle yet unique features among the diverse family of leaf warblers. Measuring approximately 10-11 cm (4 inches) in length, it presents an olive-greenish coloration on its upperparts, contrasting with paler, often whitish, underparts. A key field mark is its indistinct pale supercilium (eyebrow stripe) and notably dark bill and legs, ...
This warbler primarily inhabits montane and submontane broadleaf forests, typically found at elevations between 300 to 1800 meters, preferring the canopy and mid-story layers with dense foliage.
Its diet consists mainly of small insects, including their larvae, and spiders, which it actively gleans from forest foliage and small branches.
The Negros Leaf Warbler is an active and restless bird, constantly flitting through the foliage in search of food. It forages primarily by gleaning insects and spiders from leaves and small branches, often hanging upside down or performing short hovering sallies to reach hidden prey. Though gener...
The Negros Leaf Warbler is strictly endemic to a cluster of islands within the Western Visayas region of the Philippines, representing a highly restricted geographic distribution. Its primary distribution includes the islands of Negros and Panay, where it is most reliably found in remnant montane...
Near Threatened
- The Negros Leaf Warbler is a true island endemic, found only on a handful of islands in the central Philippines. - Its scientific name, *nigrorum*, means 'of the dark ones,' likely referring to its distinctive dark bill and legs compared to many other leaf warblers. - Despite its drab appearanc...