Not many at all. Wind turbines pose a negligible risk to birds: http://theconversation.com/wind-farms-are-hardly-the-bird-slayers-theyre-made-out-to-be-heres-w

Not many at all. Wind turbines pose a negligible risk to birds: http://theconversation.com/wind-farms-are-hardly-the-bird-slayers-theyre-made-out-to-be-heres-why-79567 http://theconversation.com/wind-farms-are-hardly-the-bird-sl...