Philippine Bulbul (Hypsipetes philippinus) [XC320921]
by Romeo B. Galang, Jr from Tabunan Forest, Cebu, Central Visayas, Philippines (call)
Philippine Bulbul (Hypsipetes philippinus) [XC606177]
by Frank Lambert from Maragusan (San Mariano) (near Maragusan), Compostela Valley, Davao Region, Philippines (song)
Subspecies
Often treated as conspecific with Zamboanga Bulbul (Hypsipetes rufigularis), but is much smaller, and no evidence of intergradation where ranges approach each other. Distribution and validity of subspecies provisional. Some are weakly differentiated (e.g. saturatior) and may not warrant recognition, and others possibly represent separate species. A thorough review is required.