Wind turbines kill as many birds as your home's sliding glass door. Probably less because the mere motion of the 12,000 lb blades is enough to deter the birds and slow enough not to endanger.
If you see wind turbines that spin quickly those are the much smaller, obsoleted units, that we would be well served to replace with the newer 1 megawatt or larger units. This would also result in a lot more power per sq area of wind farm with fewer units... or in Kennedy's lingo... a lot less endangered horizon imparing energy generation.
"if RFK Jr. really cares about birds, let me set his mind at ease. The ''whirling turbines'' don't whirl; they rotate slowly and gracefully in the wind."
"A bird would have to be suicidal to hit one."
"RFK Jr. could have joined me (the author) in studying the radar and infrared tracks of migratory birds approaching the wind farms."
"He would have seen the birds are smarter than those ''environmentalists'' who speak for them - that entire flocks approach the wind farm, see it, and, surprise, fly around it."
" In fact, only two birds were killed in two years at the Baltic wind farm."
"I'd wager that's fewer than the birds killed each year flying into the sides of the Kennedy compound in Hyannis."
http://www.capecodonline.com/cctimes/edits/economou.htm
Slow enough that I wonder if the birds can't perch on them. (What's birdie for "Wheeeeeeeeee!"?)