This species occurs on northern and southern Bougainville Island, Papua New Guinea, at 700-1,000m asl.
Habitat and Ecology
It is a scansorial and arboreal species inhabiting rainforest. It has not been found in degraded habitats, perhaps because the habitat within its altitudinal range is still in good condition. It breeds by direct development.
It is a reasonably common species.
The war in Bougainville has probably minimised potential impacts of logging and mining.
It is not known from any protected areas.
Fred Parker, Stephen Richards 2004. Cornufer montanus. In: IUCN 2014