Hello Celticguy,
Sounds plausible, but there is this puzzling little problem with the headline. It is not documented. It is conjecture. This sentence from your link gives away the misleading title:
"The fact is, in recent years, many missing condors have most likely perished at wind farms in California."
That is not a fact. That is a guess.
Now, it is very reasonable that if an organization such as "National Wind Watch," "a nonprofit coalition for raising awareness of the shortcomings of industrial wind energy and its negative impacts on the environment, economy, and quality of life," was able to document that condors were being killed by turbines, that they would document that on their site.
But they haven't.
And that strongly suggests no condors have been killed by turbines.
"I am an expert on birds of prey and in my opinion, California condors have died at the Tehachapi Pass wind farm. An independent team of observers having full access to the Tehachapi Pass wind farm could confirm this in 12 to 24 months time. "
This opinion piece you linked was from 2007. It said there were 130 condors in the wild. Now, we hear that there are 1000. Plenty of time has passed for this suggestion of his to occur. Why was this the best link you could find? Is there no newer link providing the results of his proposed study? Is that because the ban on lead bullets in the region had the intended effect? It WAS scientifically documented that lead bullets were responsible for killing condors. Why are you unable to find any documentation that turbines have also taken at least ONE BIRD?
First link of many on google.
Why else would condors need to rebound ?