Koonthankulam or Kunthankulam Bird Sanctuary is a secured region situated in Koonthankulam town in Nanguneri Taluk of Tirunelveli area. This is the biggest hold for rearing water feathered creatures in South India and furthermore one of the mainstream spots to visit in Tirunelveli for flying creature sweethearts. Koonthankulam Bird Sanctuary comprises of Koonthankulam and Kadankulam water system tanks and is spread over a territory of 1.29 sq. km.
It is pronounced as a haven in 1994. This asylum is effectively secured and overseen by the Koonthankulam town group. This haven is a critical Bird site in Tamilnadu and it pulls in excess of one lakh winged creatures every year. The visitors visit the place in quest for seeing painted stork which is the real fascination of this place.