Each and every species of water bird found in Sri Lanka is believed to visit Bundala National Park . Nearly 200 species of birds have been recorded within the park, out of which 58 species are migratory birds.
During September and March, hoards of migrants arrive in Bundala; among them are Marsh and Curlew Sandpiper, Curlew and Greenshank Golden and Kentish Plover, Large and Lesser Sandplovers. While the Broad-billed Sandpipper and Red-necked Phalarope are the rare visitors, the most famous migratory bird is greater flamingo. Hoards of flamingoes are one of the most common sights. In this period over 10,000 shore birds might be feeding at any one day.
The lagoons at the park attract a great variety of aquatic birds: among them are ibis, pelicans, painted storks, Black-necked Stork, terns, gulls, sand-pipers, snipes, teals, egrets and spoonbills. Endemic birds include the Brown-capped Babbler, Ceylon Woodshrike and Ceylon Jungle-fowl.