A rather nondescript medium-sized wren. Mostly brown above and rusty below, with a white eyebrow and pied streaked cheeks. Skulks in the undergrowth of seasonally flooded forest and second growth, often near water. The similar Buff-breasted Wren has less strongly marked cheeks and a more complex song. Where the two overlap, Fawn-breasted is more likely to be found in wetter habitats.