Leaving aside the huge turbines and wind farms for a moment, what about the micro turbines on people's houses and businesses? Stirling University are about to do a study into their impact on wildlife. See...
BBC NEWS | Scotland | Tayside and Central | Turbines' impact on birds probed
The quote that struck me the most was:
"To date, there have been no studies anywhere in the world to assess the importance of collisions, or any other risks that micro-turbines may pose, to bird or bat populations."
So the sooner the better then, as I think we're likely to see the number of these turbines rise dramatically over the next few years as the planning restrictions are relaxed.
Dave P.