Tamil Nadu’s six more wetlands have been recognised as Ramsar sites. The state houses 10 Ramsar sites at present. Tamil Nadu is now one of the top spots in India along with Uttar Pradesh for having the most Ramsar recognised wetlands. Ramsar recognition is an intergovernmental environmental treaty which was established by UNESCO in 1971. This recognises wetlands in the world which are internationally important and provide a safe habitat to waterfowl (provides space for 180 species of birds).