By Antony Grossy [CC BY-SA 4.0 (http://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons
Asia. Eastern India. Northern India eastwards into S China, Indochina, Malaysia, Indonesia and Borneo.
Least Concern as a species but there are many subspecies and those in Thailand are Near-threatened, and those in China, the Philippines and the Thai-Malay peninsula are Vulnerable.
NBN atlas has 8 records as at end 2024. Map Here