I’ll let the Coast Guard’s own captions explain these pictures. You can find many more, as well as videos, at the Coast Guard site.
GRAND ISLE, La. – An oiled reddish egret walks along a beach in Grand Isle, La., May 20, 2010. Oil from the Deepwater Horizon/BP incident began washing up on beaches here exactly one month after the drilling unit exploded. U.S. Coast Guard photo by Petty Officer 3rd Class Patrick Kelley. [100520-G-8744K-006]