Ok, then either post better ones or say why you don't like them, or what is the reason for distrust. Just saying "I don't trust these numbers" adds absolutely nothing to the discussion. Imagine if I said "I trust these numbers" - is that helpful?
In any case, those are probably just napkin calculations. And I bet I can find a wild variety of estimates for birds killed by wind turbines, too - depending on whether the person doing the estimating wants turbines to succeed or not.
It seems likely they don't kill the same birds as wind turbines, either. And not in the same locations.
All in all the comparison might just make not much sense to begin with.
How many birds are being killed and eaten by humans, for example? Probably several billions more, but they are not the same birds that are being killed by turbines.
