This is the 15th successive year that residents of Mettupalayam, Thatchenkattuvazhi, Pungambady, Meenakshipuram and Semmandampalayam villages celebrated Diwali without bursting crackers.
Officials said hundreds of local and other country birds visit the sanctuary from October, lay eggs, hatch them and leave in December. This year also some Australian Pelicans and other local birds have arrived.
Villagers said they decided not to burst crackers during the festival as it would scare the birds away. They allow their children and others to use sparklers.