Shifting Sand Dunes

The sand dunes are important to barrier islands. They are the natural protection for the island from the wind, waves, and water of the ocean. They are important for nesting endangered shorebirds. Connect the dots below to discover another animal that needs dunes to nest!

Hint: I am a female reptile that comes ashore May through August. I lay almost 120 eggs in each nest, but only 1 in 1000 of the hatchlings will survive to adulthood.

Who am I?