PacificCorp Energy was fined $2.5m for bird deaths in Wyoming wind farms. The US government alleged that "PacifiCorp Energy failed to make all reasonable efforts to build the projects in a way that would avoid the risk of avian deaths by collision with turbine blades, despite prior guidance from the U.S. Fish and Wildlife Service."
For more see, http://www.denverpost.com/news/ci_27269019/company-fined-2-5-million-aft...