A sprawling tank at Tiruthalaiyur in the district has been a haven for migratory birds, attracting a large number of species from different parts of the globe. Gifted with serene atmosphere and isolated from human habitations, the village has been a gift for a number of migratory birds.

The birds that visit the lake include naththakumbi naarai (open billed stroke), kokku (egrets), anbil, aruval mookkan (Ibis white), raa kokku (night heron), grey heron, ullan kuruvi (sand piper), plover and a host of ducks.