The hair-crested drongo (Dicrurus hottentottus ) is an Asian bird of the family Dicruridae. This species was formerly considered conspecific with Dicrurus bracteatus, for which the name "spangled drongo" – formerly used for both – is now usually reserved. Some authorities include the Sumatran drongo (D. sumatranus ) in D. hottentottus as subspecies.
It is native from Bangladesh, India, and Bhutan through Indochina to China, Indonesia, and Brunei. Hair-crested drongos move in small flocks and are very noisy. The "spangled drongo", Dicrurus bracteatus, is native on the east coast of Australia and its name is pejorative slang for a silly person. This may be due to its strange chattering and cackling.