The Fiji Bush Warbler is endemic to Fiji and lives in dense undergrowth in mountain forest. General descriptions show a dark chestnut head, while the Kadavu form has a broad pale eyebrow.
General descriptions give it a dark chestnut crown, nape, and ear-coverts, chocolate-brown upperparts, a whitish throat, and gray underparts. The Kadavu form has a broad off-white eyebrow and less contrast at the throat.
It lives in mature upland forest on steep slopes, among bamboo and thick undergrowth. It searches for invertebrates near the ground.
An extinction-risk assessment has not been added yet.