Forest laughingthrush of montane and submontane areas. Slate-gray head and chest, chestnut wings and tail. Pale blue eyering gives it a startled appearance. Forages close to or on the ground, noisily flipping leaf litter. Also visits campsites and trailheads like Chestnut-hooded Laughingthrush, but Sunda is comparatively shier. Raucous song starts off with a few distinct hooting notes and promptly descends into a jumble of chaotic noise, often giving away its presence in the undergrowth. Also gives squeaky yelps, quieter “chup” notes, and dry rattles.