The Deepwater Horizon rig explosion spewed more than 168 million gallons of oil into the Gulf of Mexico over three months, the largest spill in U.S. history. But so far, there is no evidence of deformities or ill health among the young on Gaillard Island. Scientists speculate that the baby boom probably results from an abundance of fish left undisturbed in waterways where the federal government banned commercial and recreational fishing last summer, providing a feast for shore birds. In a speech this spring, the executive director of the nearby Dauphin Island Sea Lab said the fish populations in that part of the Gulf were larger than he had ever seen. The population of the pelicans, terns, laughing gulls, egrets, ibis and little blue and tricolored herons nesting on Gaillard Island is determined by the food supply, said Roger Clay, a wildlife biologist with the Alabama Division of Wildlife and Freshwater Fisheries.
Island off Alabama coast bursting with birds after Gulf oil spill | MNN - Mother Nature Network