No intention to engage you in a debate, but I am certain far more birds die from pollution from conventional fuel sources, from plastic, and even via cats who are allowed outside and kill songbirds by the millions. I work on research ships and we often carry an ornithologist. I recall one who put on a slide show and lecture at sea. You’d be amazed how many sea birds for example die with bellies full of plastic crap that we don’t even think about when we toss it in the bin.
Birds also die from smacking into buildings. Fixed objects. So of course they will run into turbines…so my thought would be that location and placement could be better planned in concert with known migration routes and of course, the substrate they will be installed on. There are successful installations all over the world.