World Bird List

Species factsheet
Sultan Tit (Melanochlora sultanea)

Order: Melanochlora sultanea
Family: Tits, Chickadees (Paridae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
sultanea e Himalayas to s China, n Thailand and Myanmar
flavocristata c and s Thailand, Malay Pen., Sumatra and Hainan I. (off se China)
seorsa se China and n Indochina
gayeti se Laos and sc Vietnam