Don't people think anymore?
I'm not too worried about the birds being sliced and diced by the turbines, but I do remember writing some articles long ago about the Rio Grande Valley being a confluence of 4 major migratory flyways and that many North American birds either winter in the area or make it their last stop before heading out over the Gulf to Central and South America wintering grounds - and their first stop after the long haul over the Gulf coming back.
IOW, they might be flying lower there than their usual altitude. Also, I had a birding friend who told me the area is the Grand Central (I was going to say "mecca," but decided against it) Station for birdwatchers wanting Life Points, in that over 500 species can be spotted there, which means they are feeding or low-flying enough to be observed.
It IS a very important birding area for all of the Western Hemisphere. The birders have their big int'l convention there, IIRC.