Bougainville Thicketbird Cincloramphus llaneae

A relatively thick-bodied, long-tailed warbler, prone to creeping like a mouse low in vegetation. Dark brown above. Chest and face paler orange-rusty with a dark eye-stripe. Belly darker than chest. Found in dense dark stands of bamboo, ferns, and forest undergrowth above 900 meters of elevation. Voice reported to be a two-noted whistled phrase, followed by a single higher-pitched note.