When archivist and musician Heather Fox heard a new sound behind her house, she set out her iPhone to capture it. Somewhere out there in the drizzly darkness, as her cats and dog wandered and crickets called, frogs of a species new to her backyard were calling. To hear the full recording, explore the sound map, or submit a sound visit www.wfpl.org/sounds or www.kentuckianasounds.org.