- The Periwinkle Dance shows a pair of Mallards moving their feet up and down in an intertidal area.
- In this area periwinkles were very abundant and their leg movements causes them to detach and float upward making them easier to catch.
- Periwinkles are a very important food for several creatures in Alaska. For information about this look at Sitka Periwinkle by the Alaska Department of Fish and Game.
