A medium-sized bird of montane forest interior on New Guinea. Brown with pale mottling on the underparts and light streaking on the head and back. Rusty cheek, under the base of the tail and edging to the wing. Males in the east are more grayish and much less strongly patterned. Somewhat similar to Spotted Berrypecker, but Mottled Berryhunter is larger, but smaller and less patterned than Little Shrikethrush. Song, a short, up-and-down whistled phrase.