The white-bellied whistler (Pachycephala leucogastra) is a species of bird in the Pachycephalidae family.The species has an oddly discontinuous distribution, occurring in two small patches of northern New Guinea, one small patch in south eastern New Guinea and on Rossel Island in the Louisiade Archipelago (off the tip of eastern New Guinea). The species uses a variety of habitats, including wet eucalyptus forests, mangrove forests, savanna, and modified habitats like rubber plantations.