Phylloscopus poliocephalus
The Island Leaf Warbler, *Phylloscopus poliocephalus*, is a diminutive and active passerine, typically measuring 10-12 cm (4-4.7 in) in length with a weight of 5-8 grams. It exhibits a rather plain but elegant plumage, generally olive-green to greenish-yellow on the upperparts, contrasting with paler, often whitish to yellowish-white underparts, giving it a fresh appearance. A distinguishing field mark is its prominent pale supercilium (eyebrow stripe) and a dark eye-stripe, which accentuates...
This species primarily inhabits tropical and subtropical moist broadleaf forests, montane forests, and forest edges, often favoring dense undergrowth. It is found across a wide elevation range, from sea level up to 3,000 meters (9,800 feet) in some mountainous regions.
Primarily insectivorous, feeding on a wide variety of small insects and arthropods gleaned from foliage and twigs, or caught in short aerial pursuits.
Island Leaf Warblers are highly active, diurnal birds, constantly on the move as they forage through foliage. Their foraging strategy involves gleaning small insects and arthropods from leaves and branches, often making short, agile sallies to catch prey mid-air. Males are highly territorial duri...
The Island Leaf Warbler has an expansive but highly fragmented distribution across the islands of Wallacea, Melanesia, and Micronesia in the Indo-Pacific region. Its breeding range spans from the Lesser Sundas (e.g., Timor, Flores) and the Moluccas, eastward through New Guinea and its surrounding...
Least Concern
- The Island Leaf Warbler complex comprises an astonishing number of subspecies, with over 30 described, making it one of the most polytypic bird species in the world. - Some ornithologists consider the *Phylloscopus poliocephalus* complex to be a 'superspecies,' with many of its former subspecie...