Wilpattu National Park is the largest and one of the oldest Sri Lankan National Park. It is located on the west coast close to the historical city of Anuradhapura. The park is among the top national parks world-renowned for its leopard. It was decalred as a National Park in 1938. The unique feature of the park is its many natural lakes which are important for resident and migratory water-birds. There are approximately 31 species of mammals in the Wilpattu National Park which include threatened species such as Sri Lankan Elephant, Sri Lankan Leopard, Lankan Sloth Bear, Sri, Spotted Deer, Buffalo, Sambar and Mongoose.
Wilpattu is also home to many wetland bird species such as the Garganey, Pin tail, Whistling Teal, Spoonbill, White Ibis, Large White Egret, Cattle Egret and Purple Heron can be found in the park. Gulls, Terns, Owls, Kites, Eagles and the endemic Sri Lanka Jungle fowl, Little Cormorant and the Painted Stork can also be found in the park. Many different reptiles such as Monitor Lizard, Mugger Crocodile, Common Cobra, Rat Snake, Indian Python, Pond Turtle and the Soft Shelled Turtle also live in Wilpattu park.