Entomologist and TV host Phil Torres (previously) dives deep into the natural world to document sights and sounds that many of us will never have a chance to experience firsthand. In his most recent video, Torres showcases the sound created by millions of migrating monarchs. The iconic orange and black butterflies convene every year in Mexico, where they overwinter during the Northern Hemisphere’s cooler months. In Torres’ six minute video, monarchs cluster by the thousands on individual tree branches and swarm the forest air, creating a rushing, waterfall-like sound. We highly recommend listening to the video with a pair of earphones to really pick up the subtleties in the audio. You can see more of Torres’ outdoor explorations on his Youtube channel, The Jungle Diaries, and follow along on Twitter.