Sulphur-bellied Bulbul

Iole palawanensis

The Sulphur-bellied Bulbul (Iole palawanensis) is a striking, medium-sized passerine, a vibrant endemic species confined to the Palawan biogeographic region of the Philippines. Measuring approximately 19-21 cm in length and weighing around 30-40 grams, this species is conspicuously identified by its bright sulphur-yellow underparts, which offer a sharp contrast to its olive-green upperparts. Subtle field marks include a faint yellowish eye-ring and dusky lores, complementing its typical bulbu...

Habitat

Primarily found in primary and mature secondary lowland forests, the Sulphur-bellied Bulbul also inhabits forest edges and regenerating clearings. It typically occurs from sea level up to elevations of approximately 1,000 meters.

Diet

The Sulphur-bellied Bulbul is omnivorous, primarily consuming a diet of small insects gleaned from vegetation and a wide variety of forest fruits and berries. They forage by actively searching and plucking items from leaves, branches, and fruiting plants.

Behavior

Sulphur-bellied Bulbuls are active, diurnal birds commonly observed foraging solitarily, in pairs, or as part of mixed-species feeding flocks that traverse the forest canopy and mid-story. Their foraging strategy involves gleaning insects from foliage and branches, along with adeptly plucking var...

Range

The Sulphur-bellied Bulbul is strictly endemic to the Palawan biogeographic region in the southwestern Philippines. Its resident breeding range encompasses the main island of Palawan, along with several adjacent smaller islands including Busuanga, Culion, Balabac, and Bugsuk. This species exhibit...

Conservation Status

Least Concern

Fun Facts

- The Sulphur-bellied Bulbul is an island specialist, found exclusively within the unique ecosystem of the Palawan faunal region in the Philippines. - Its scientific genus name, *Iole*, has Greek origins, potentially alluding to a violet or yellow color, a fitting descriptor for its vibrant under...

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