Adult brown pelicans wait in a holding pen to be cleaned by volunteers at the Fort Jackson International Bird Rescue Research Center in Buras, Louisiana on June 20, 2010. Members of the Tri-State Bird Rescue and Research team work to clean birds covered in oil from the Deepwater Horizon wellhead. The BP leased Deepwater Horizon oil platform exploded on April 20 and sank after burning. Picture taken June 20, 2010.[Photo/Agencies]