Reply #8: It could depend on the bird specie.

[Gregorian]

But to be honest, I've never believed the bird problem hype. And here's why- with three small blades, and a slow rpm, the probability of a bird hitting a blade is quite small. Combine that with the fact that birds seem to know how to avoid things quite well.

I hate to be pessimistic, but our problem isn't energy. It's population. With large enough numbers, I imagine even windmills will have their problems. For example, just being downwind of one would diminish your wind, perhaps. I'll take my chances over pumping black goo out of the ground, any day. But people really need to know what the problem is. It's not oil. It's not energy. It's numbers of users. And here's just another problem- it takes energy to make windmills. There are things that require so much energy density, that we must use petroleum. Like mining the copper for generator windings, and aluminum for propeller blades, etc. And shipping of windmills. It's not a free ride by any means. Again, it boils down to how many. But everything we can do, will help. Our only option, given the 120 year transit time of CO2, is to reduce and or stop combustion.

Bla bla bla.