A large, shy, stocky bird of lowland and foothill forest interior in northern New Guinea. A light brown crown, contrasting with white cheek and throat. Uneven, black-blotched moustache and collar is narrower at the front and often open at the throat. Chest and belly is pale buff blending into the white throat covered with large black spots which often join to form thick streaks. It may overlap altitudinally with Northern or Huon Catbirds, but Tan-capped is smaller, found at lower elevation and has a white cheek. Voice, a long drawn-out rasp.