The San Antonio Express News had an article on the front page yesterday called It's down to the wire for bird lovers to make a bid to halt wind farms.
It seems that although wind power is clean and if not now, someday might be cheaper someday than other power sources, migrating birds can be killed by wind turbines. This is another example of there being no free lunch. There are always tradeoffs. Want less dependence of fossil fuels (especially the imported kind) and a cleaner environment? There may be fewer birds. Here is one passage from the article:
"The debate has become nasty at times, with local Audubon societies and the famous King Ranch facing off against the John G. and Marie Stella Kenedy Memorial Foundation and the John G. Kenedy Jr. Charitable Trust, which own the land where the turbines would be built."