World Bird List

Species factsheet
Blue-wattled Bulbul (Pycnonotus nieuwenhuisii)

Order: Pycnonotus nieuwenhuisii
Family: Bulbuls (Pycnonotidae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
inexspectatus Sumatra
nieuwenhuisii Borneo
Annoncer