I was looking into Wind Turbines awhile ago and compiled a list of stuff I found. This is for the large-scale turbines that are more likely to be a part of wind farms, I'm not sure how much smaller sizes would have the same effects. As more wind farms are probably going to be built, hopefully they can be built distanced enough from residential areas, but then there is still the bat problem.
Windmill/Wind Turbine Explosion
"The braking mechanism that limits the speed of the wind turbine broke during a storm in Denmark. This was the outcome. 02/22-2008.
http://jp.dk/uknews/article1277616.ece
Bonus info:
-The tower of the mill was 60m high
-Wind speed was probably around 30 m/s
-You can see a truck at the base of the mill, but nobody was hurt. The mill had been evacuated 400m in each direction."
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Wind Turbine Syndrome
Radio Interview -
News Story -
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Wind Turbine Shadow Flicker and Noise, Byron Wisconsin
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The general consensus is that the death count for birds isn't that bad. But bats are another story as they are the first line of defense against mosquitoes. Whereas birds die from direct contact, bats die because the change in air pressure causes their lungs to explode. According to this discovery article its ten bats for every bird death caused by wind turbines.
http://dsc.discovery.com/news/2008/08/25/wind-turbine-bats.html
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Turbine Ice/Snow Buildup