Green-backed Whistler (Pachycephala albiventris) [XC39656]
by Jelle Scharringa from Mount Polis, Luzon, Philippines (call)
Green-backed Whistler (Pachycephala albiventris) [XC629419]
by id from Hungduan, Ifugao, Cordillera Administrative Region, Philippines (song)
Subspecies
Forms a superspecies with Pachycephala cinerea, White-vented Whistler (Pachycephala homeyeri) and Island Whistler (Pachycephala phaionota). Often treated as conspecific with Pachycephala cinerea and White-vented Whistler (Pachycephala homeyeri).
The following 3 subspecies are recognised:
albiventris (Ogilvie-Grant, 1894) - Northern Luzon (Cordillera Mts, Sierra Madre), in northern Philippine Islands.
crissalis (Zimmer, JT, 1918) - Central and southern Luzon (Zambales Mts, Mt Banahao, Mt Isarog, Mt Mayon).