Ranganathittu bird sanctuary
Ranganathittu Bird Sanctuary witnesses the arrival of a large number of migratory birds of different flocks from as far as Siberia, North America and Australia. The migratory birds start arriving at the Ranganathittu Bird sanctuary in December and the breeding season starts during the winter months and they finally migrate back with their nestlings in August.
The islands host numerous mammals and migratory birds. Some of them are Bonnet Macaque, colonies of Flying Fox and common small mammals like Indian Gray Mongoose, the monitor lizard and Civet. The Marsh Crocodile also called the Mugger Crocodile is a common inhabitant of the riverine reed beds. Migratory water birds include Painted Stork, Asian Open bill Stork, Common Spoonbill, Woolly-necked Stork, Black-headed Ibis, White Ibis, Lesser Whistling Duck, Indian Shag, Stork-billed Kingfisher and other common birds like egrets, cormorants, Oriental Darter, and herons. The Great Stone Plover, and River Tern also nest here. It is home to a large flock of Streak-throated Swallows.