The 16th bird sanctuary in Tamil Nadu, the Kazhuveli Wetland Birds Sanctuary, is in the Vanur and Marakkanam talukas of the Villupuram district. After Pulicat lake, Kazhuveli, at 5,151.6 hectares, attracts many long-distance migrant birds from Central Asia and Siberia and is believed to be the second-largest brackish lake in southern India.
