The rookery islands do not rise much above sea level which is one of the reasons the Brown Pelican nests have a low success rate. Over wash from storm driven tides can and has easily wiped out whole colonies on this and other barrier islands.
The bird chaos was amazing with numerous species in addition to the Brown Pelicans using the island. Snowy Egrets, Tricolored Herons, and Laughing Gulls were well represented.
This view is the sea-ward end of the island, with the shore crowded with Brown Pelicans and Laughing Gulls. The island down to the low tide mark is a protected preserve.
Shore access is not allowed during nesting season; these images were all taken from a boat at a shutter speed of 1/2000th of a second to help compensate for the boat movement.
See my previous post Brown Pelican Chicks for a closer look at five chicks.