Closeup of common loons calling show little they need to open their beaks to make these sounds. | Harry Collins Photography

The common loon hunts by first looking for prey underneath the water's surface, then diving deep to catch it. Usually the common loon eats its catch before returning to the surface, but not when there are two hungry chicks to feed! Video Description: Two adult loons show their two chicks how to hunt for food. The family swims together in a lake within Sleeping Bear Dunes National Lakeshore. | Sleeping Bear Dunes National Lakeshore