Upper Mamberamo Basin (Idenburg R, lower Mamberamo R, probably also
Rouffaer R) and Wapoga Basin (Tirawiwa R and Logari R), in western New
Guinea.
 
Population
Estimated population is unknown (2010) and decreasing.
Status NT
Large-scale timber and agricultural schemes and a proposed dam on the Mamberamo gorge are potential threats.
For more information see BirdLife International Species Factsheet.