WLD 2020 Hydrophone recordings of creek

Though it sounds like two distinct mono recordings - which in one sense it is - both channels were recorded at the same time on the same device (Zoom H4n). Sounds were picked up using piezo-element contact microphones on the tops of beverage cans placed into the water. The left channel has a continuous sound from what seems to be a pebble on the creek-bed being rolled about by the current, whereas the right has only occasional sounds of water movement caused by the can. Both channels also pick up ambient sounds from the air such as red-winged blackbirds, dogs, and people.