Kumana National Park is an ideal place for Bird Lovers which is a popular Bird Sanctuary. The park is affiliated to the Yala National Wildlife Park situated on the west side. Kumana carries a rich flora, fauna and a cultural heritage. The park’s wetland areas are surrounded by dry zone tropical thorn forest. The southern boundary of the national park lies the Kumbukkan Oya. Kumana serves as a bird nesting and feeding ground in the country and is home to nearly 255 bird species, majorly large flocks of migratory waterfowl and wading birds.Unconcerned its dry condition, tens of thousands of birds use to migrate to the Kumana swamp area annually during the months of April to July. Black-necked Stork, Adjutant, Eurasian, and Great Thick-knee are some of rare bird species known as breeding inhabitants of Kumana villu. The Pin-tailed Snipes migrate to Kumana flying 9,000 to 11,000 kilometres from Siberia.
Asian Openbill, Glossy Ibis, Purple Heron, Great Egret, Indian Pond Heron, Black-crowned Night Heron, Intermediate Egret, Little Egret, Spot-billed Pelican, Indian Cormorant, Little Cormorant, Common Moorhen, Watercock, Purple Swamphen, White-breasted Waterhen, Pheasant-tailed Jacana, Black-winged Stilt, Lesser Whistling Duck and Little Grebe are the bird species migrate here in large flocks.
Although Kumana is not well known for its mammals, the park offers a home to a small herd of strong elephants while few leopards, golden jackals, wild boar, otter and fishing cat roam freely in the park.