There are some valid gripes about the wind farms. People don't like the look of them generally, they lower property values accordingly simply due to that. They do kill birds, but not particularly many more of them than any large structure does.
These "stop the wind farms" folk are rampant where I grew up on lake Erie as well. They spout bull shit almost entirely, and have no grasp of the science and constant compromises required in energy production at all. I have a pamphlet from them that goes on about how the EM waves are causing everything from bee death to cancer. This of course despite the fact that there is less radiation from an entire farm of these than a wireless hot spot.
It is just stirred up propaganda rage taking advantage of the fact that people are profoundly stupid and easy to stir up. The only legitimate complaint is that of property values which ironically will be made worse the more they whine and get others on their side.
Classic NIMBY. They have no desire to debate the pros and cons. They do not care that producing energy requires some compromises in either space efficiency, cost, pollution, etc. This is one of those issues that profoundly pisses me off as I tried to take the initiate and talk to the leaders in my area about what they were worried about. All I got back was how my physics degree makes me part of the problem...
Edit: On actual health effects. Don't underestimate the crippling effect living near something that pisses you off can cause. The farms themselves could be entirely innate but if enough rage is directed towards their existence the stress of those poor sods is going to go through the roof.