According to wildlife experts, the vast majority of contaminated birds will die a painful death within 7 days of being cleaned. The damage is already done and cleaning them only contributes to their stress. :(
Expert Recommends Killing Oil-Soaked BirdsA German biologist says that efforts to clean oil-drenched birds in the Gulf of Mexico are in vain. For the birds' sake, it would be faster and less painful if animal-rescue workers put them under, she says. Studies and other experts back her up.
"Kill, don't clean," is the recommendation of a German animal biologist, who this week said that massive efforts to clean oil-soaked birds in Gulf of Mexico won't do much to stop a near certain and painful death for the creatures.
Despite the short-term success in cleaning the birds and releasing them back into the wild, few, if any, have a chance of surviving, says Silvia Gaus, a biologist at the Wattenmeer National Park along the North Sea in the German state of Schleswig-Holstein.
"According to serious studies, the middle-term survival rate of oil-soaked birds is under 1 percent," Gaus says. "We, therefore, oppose cleaning birds."
http://www.spiegel.de/international/world/0,1518,693359,00.html