Here at the ECOAN reserve at Abra Patricia in northern Peru, birding can be difficult. The montane cloud forest, thick with bamboo and moss, is hard to see into. Antpittas, tapaculos, and other skulkers await the patient birder.
But better than seeing any of these is the experience of hearing a duetting pair of Chestnut-breasted Wrens. We actually saw them as well, but they don't look like much. I posted this recording to the Xeno-canto website. Enjoy.