Northern Chestnut-breasted Wren Cyphorhinus dichrous

Found at higher elevations than other members of its genus. Shy and uncommon denizen of forest undergrowth from 1,100–2,000 m. Chunky and short-tailed, dark brown above with rich rufous neck and breast. Blue eyering. Sexes alike. Could recall an antbird, but especially note pointier bill with a thicker base. Typically found in pairs or small family groups foraging on or near the ground. More easily heard than seen: listen for repeated sets of 2–3 eerie whistled notes stepping up in pitch, with little to no break between each set.