World Bird List

Species factsheet
Sooty-headed Bulbul (Pycnonotus aurigaster)

Order: Pycnonotus aurigaster
Family: Bulbuls (Pycnonotidae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
chrysorrhoides se China
resurrectus s China and ne Vietnam
dolichurus c Vietnam
latouchei e Myanmar to s China and n Indochina
klossi se Myanmar and n Thailand
schauenseei s Myanmar and sw Thailand
thais c and s Thailand, c Laos
germani se Thailand and s Indochina
aurigaster Java and Bali