Wildlife Dying?

The number of birds being treated for oil from the Gulf of Mexico spill is rising.

But, as with sea turtles and dolphins, the vast majority of dead birds found so far don't show signs of oil.
The U.S. Fish and Wildlife Service says 62 oiled birds and three oiled sea turtles have been rescued from the Gulf and in states affected by the oil spill.
It says another 478 dead birds, 224 dead sea turtles and 25 dead marine mammals have been found.
It says that at least 90 of the birds did have oil on their feathers or bodies, but at least 338 don't have any visible oil.
Authorities said earlier that one dolphin and one sea turtle had oil on their bodies, and officials didn't know whether it got there before or after death.