Now, it's likely the same oil is affecting some area wildlife.
A large adult pelican was found Friday, covered in thick brown oil near a Delacroix dock in St. Bernard Parish.
The weak, disoriented bird didn't have the strength to fly away from fishermen working a few feet away.
A wildlife rescue team picked up the oiled pelican and took it to a rehabilitation center for cleaning.
BP's Gulf Coast Incident Manager said the company expected residual oil to kick up during Isaac.