Effect of new wind farms on Low level flying
Have to agree with everyone here so far. The anemometer masts are an accident waiting to happen. Even in daylight when you know where to look, they are difficult to spot. At night in poor weather, you just need to stay get above them if you can.
All of the above assumes that these obstructions are are charted, and not all of them are. They seem to come and go on a daily basis. Sometimes you're looking for a mast that has been removed and not looking for one that has magically appeared.
Flying at low level is now really quite risky. In my opinion.