Yala National Park consists of dry-mixed evergreen forests and scrublands along with open grasslands, water holes, brackish water lagoons and riverine forests. This park's diverse habitat supports large numbers of mammals, such as spotted, barking and mouse deer, sambhur, wild boar, water buffalo and the endangered sloth bear. This is also one of the best places in the country to see wild elephant, and the rare Sri Lankan Leopard, having one of the highest Leopard densities in the world.. Large water holes and lagoons support the high density of endangered crocodiles. You can also see large flocks of migratory and resident birds—142 species of birds have been recorded in the park. Of particular note is the rare black-necked stork, the largest bird in the country.