Local Species
Among the bird species found only in these forests are Sri Lankan wood pigeon (
Columba torringtoni), green-billed coucal (
Centropus chlororhyncus), Ceylon magpie (
Urocissa ornata), Sri Lanka grey-hornbill (
Ocyceros gingalensis), and yellow-fronted barbet (
Megalaima flavifrons).
Mammal species found on the island include toque macaque (
Macaca sinica), Asiatic striped palm squirrel (
Funambulus layardi), the endemic Kelaart's long-clawed shrew (
Feroculus feroculus), Ceylon giant squirrel, the endangered
Asian elephant (
Elephas maximus), and the threatened
leopard (
Panthera pardus).
Floristically, the lowland and lower hill forests are the richest in Sri Lanka. An endemic ground orchid,
Anoectochilus setaceus, commonly known as the king of the forest or wanaraja, is found only in undisturbed portions of these rain forests.