There were two obvious areas on the beach. One as seen above littered with shells. And another zone with almost no shells. I figured that it had to do with the tide line and wave action.
I was wrong.
It seems there is a gentleman that visits the beach and collects the shells. He is a good neighbor to the birds and does not collect them from the breeding area. And he is apparently very thorough in his collecting.
Now, you may be wondering what he does with all theses shells. As was I. Well, he takes them home and runs them through a cleaning cycle in his dishwasher. And then he sells them to local restaurants.
Ever enjoy clams casino? Those clam shells have to come from somewhere ...