Sunda Bush Warbler (Horornis vulcanius) [XC154541]
by Paulo Alves from Ranu Tompe (Bromo Tengger Semeru National Park) East Java, Indonesia (song)
Sunda Bush Warbler (Horornis vulcanius) [XC56274]
by Patrik \u00c5berg from Gunung Alab Resort, Crocker Range NP, Sabah, Borneo, Malaysia, Malaysia (call, 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.