Birds navigate oil-covered rocks around Queen Bess Island near Grand Isle, La., on Wednesday, June 16, 2010. The rocks and shoreline will have to be washed to remove the oil that has washed up from the Deepwater Horizon oil spill.

Birds navigate oil-covered rocks around Queen Bess Island near Grand Isle, La., on Wednesday, June 16, 2010. The rocks and shoreline will have to be washed to remove the oil that has washed up from the Deepwater Horizon oil spill.