The Tonda Wildlife Management Area (WMA) is the largest protected area in Papua New Guinea. It is located in the south-western corner of the Western Province and is contiguous with Wasur National Park of Indonesia. It includes tidal river reaches, mangrove areas, swamps, grassland, savanna woodlands and patches of monsoon forest. It is an important wetland for over 250 species of resident and migratory waterbirds. Most of the World's population of little curlew (Numenius minutus) stage on the plains during migration. The area also provides habitat for birds-of-paradise and brolga (Antigone rubicunda). Tonda WMA is a wetland of international importance (or Ramsar Site) under the Ramsar Convention on Wetlands.