Alophoixus ruficrissus
The Penan Bulbul (Alophoixus ruficrissus) is a captivating, medium-sized songbird endemic to the lush rainforests of Borneo, cherished by birders for its distinctive plumage and engaging calls. Measuring approximately 20-22 cm in length, this species is characterized by its predominantly olive-green upperparts and striking bright rufous-chestnut undertail coverts (crissum), which serve as its primary field mark and the inspiration for its scientific name. A yellowish throat and breast fade to...
Inhabits primary and secondary lowland to lower montane rainforests, often favoring dense undergrowth and tangles, found from sea level up to around 1,500 meters.
Primarily frugivorous, consuming a variety of small berries and fruits, supplemented by insects and other small invertebrates gleaned from foliage.
The Penan Bulbul is a diurnal species, typically observed foraging in the mid-story and understory of its forest habitat, often singly, in pairs, or small family groups, and occasionally joining mixed-species flocks. It employs an active foraging strategy, gleaning insects from foliage and expert...
The Penan Bulbul is entirely endemic to the island of Borneo, encompassing territories within Malaysia (Sarawak, Sabah), Indonesia (Kalimantan), and Brunei. Its distribution covers both lowland and lower montane rainforests across the island, found throughout much of the interior and coastal regi...
Least Concern
- The Penan Bulbul's scientific name, `ruficrissus`, directly translates to "red undertail coverts," highlighting its most distinctive field mark. - It was historically considered a subspecies of the widespread Ochraceous Bulbul, but genetic and vocal evidence led to its elevation as a full speci...