Sunda Bush Warbler (Horornis vulcanius) [XC398501]
by Greg Irving from Kiau Gap Viewpoint, Kinabalu Park, Sabah, Borneo, Malaysia (song)
Sunda Bush Warbler (Horornis vulcanius) [XC282501]
by Peter Boesman from Crocker Range NP, Sabah, Borneo, Malaysia (song)
Subspecies
May form a superspecies with Brownish-flanked Bush-Warbler (Horornis fortipes) and has been considered conspecific, but differs in vocalizations. Originally described as "Sylvia montana", and long known by this species name, but the name is not applicable, because preoccupied.
The following 8 subspecies are recognised:
sepiaria (Blyth, 1870) - Mountains of northern Sumatra.
flaviventris (Salvadori, 1879) - Central and southern Sumatra.
palawana Ripley and Rabor, 1962 - Southern Palawan (Mt Mantalingajan), in south-western Philippines.
banksi (Chasen, 1935) - North-western Borneo.
oreophila Sharpe, 1888 - Mt Kinabalu, in northern Borneo.
vulcania (Blyth, 1870) - Java, Bali, Lombok and Sumbawa.
kolichisi (Johnstone, RE & Darnell, JC, 1997) - Alor.