The mottled berryhunter or mottled whistler (Rhagologus leucostigma) is a species of bird whose relationships are unclear but is most likely related to the woodswallows, boatbills and butcherbirds. It is monotypic within the genus Rhagologus and family Rhagologidae.It is found in the highlands of New Guinea, where its natural habitat is subtropical or tropical moist montane forests.