A small, long-legged, almost tailless brown songbird with a rufous cap and a subtle pale brown eyebrow. An active bird of the lower understory in forests, forest edge, and scrub in the foothills and mountains, most often seen singly. Limited to some islands in the Lesser Sundas, where it is the only small, rusty-capped, near-tailless brown songbird. Song is a warble consisting of seven notes, rapidly rising then falling. Other vocalizations include sharp “chip” notes.