Driftwood And Shells On The Barrier Beach, July 21

The barrier beach at the Sheldon Marsh State Nature Preserve is home to many seagulls and other birds, as well as a piece of partially buried driftwood that forms a perfect natural bench.  The shells are, I think, the shells of zebra mussels, one of the invasive species that has changed the biology of Lake Erie.  The beaches are covered with their shells, which crunch satisfyingly as you walk along.