Каштанник колумбійський Cinnycerthia olivascens

A medium-sized, uniformly-colored wren found in the subtropical zone of the Andes from Colombia to northern Peru. Plain brown overall with dark barring on wings and tail. Similar to Rufous Wren, but duller brown and typically found at lower elevations. Occurs from around 1,500-2,500m. Small parties forage in the understory of cloud forest, often around bamboo thickets. Can be skulky and difficult to see well. Sometimes follows mixed-species flocks. Listen for the harsh chattering calls.