Sulawesi Leaf Warbler

Phylloscopus nesophilus

The Sulawesi Leaf Warbler (*Phylloscopus nesophilus*) is a diminutive and often inconspicuous passerine bird, endemic to the island of Sulawesi, Indonesia. Measuring approximately 10-11 cm in length and weighing a mere 6-9 grams, it is characterized by its largely drab olive-green upperparts and pale, whitish underparts, offering excellent camouflage within its forested habitat. A key field mark for identification is its prominent yellowish-white supercilium (eyebrow stripe) contrasting with ...

Habitat

This species primarily inhabits subtropical and tropical moist montane forests, typically found at elevations ranging from 1,000 to 2,800 meters above sea level.

Diet

Its diet consists primarily of small insects and their larvae, which it gleans meticulously from leaves, twigs, and bark in the forest canopy and understory.

Behavior

The Sulawesi Leaf Warbler is a highly active and agile gleaner, constantly moving through the foliage of trees and shrubs, rarely remaining still for long. Its daily activities revolve around foraging, exhibiting a diurnal pattern where it is most active during daylight hours. While typically obs...

Range

The Sulawesi Leaf Warbler is strictly endemic to the mountainous regions of Sulawesi, Indonesia, where it is a year-round resident. Its distribution spans various mountain ranges across the island, including those in North Sulawesi (e.g., Mount Klabat, Mount Ambang), Central Sulawesi (e.g., Lore ...

Conservation Status

Least Concern

Fun Facts

- The scientific name 'nesophilus' is derived from Greek, meaning 'island-loving', aptly describing its endemic status to Sulawesi. - This species was formerly considered a subspecies of the Sulawesi Warbler (*Phylloscopus sarasinorum*) before being recognized as a distinct species. - Its distinc...

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