An oddly-shaped wren famous for its unique song, which consists of rich, fluting notes intermixed with chirps and rattles. Ranges widely in lowland and foothill rainforest in northern South America, but not found west of the Andes. It is brown with a chestnut throat and breast, and dense barring on wings and tail. There is much regional variation; in parts of its range, it has white streaking on the neck, a white line behind the eye, and/or a whitish to pale bluish eyering. Found alone or in pairs that stay on or near the ground, and can be challenging to see. It is known as “Uirapuru” in Brazil, where it has been celebrated in music, poetry, and even legends.