Wind farms aren't a major cause of bird deaths

It's hard to say how many birds are killed by collisions with wind turbines. The high end of the estimates top out around 450,000 birds each year in the United States. But even that doesn't come close to making wind turbines a major killer of American birds. Among the things that kill far, far, far more birds than wind power: Buildings, cars, and house cats. (Thanks, Uncle Bruce!)