This bird sanctuary is very popular among tourists and is located near Puri in Orissa. The chilka lake is the most beautiful brackish water lake in Asia and is famous for a rich variety of birds. Chilka Lake serves as a bird sanctuary and is the largest wintering ground for migratory birds in India. The pear-shaped Chilka lake is one of the best bird watching spots in India. Here 45 percent of the birds are terrestrial in nature, 32 percent are waterfowl, and 23 percent are waders. The lagoon is also home to 14 types of raptors. Around 152 rare and endangered Irrawaddy Dolphins have also been reported. Plus, the lagoon supports about 37 species of reptiles and amphibians.