It seems alternative energy might be all-round bad for our avian friends. I recall being taken by a guy to the Solnova generator site in Seville when we were doing a job out there. The purpose of the trip was to watch birds flying around the site.
What he didn't warn me beforehand, was that any bird flying into the reflected 'beams' anywhere near the top of the tower actually vaporised as you watched them, in a little puff of smoke.....
Solnova Solar Power Station, Sanlúcar la Mayor, Seville - Power Technology