Really? How many friggin house cats can kill eagles? Hawks? Hell, a goose can damn near kill a human much less a cat. How about you find a cite for super cat the eagle slayer.
That's got to be a damn big, atypical cat. Eagles take out foxes. Wind energy needs to address the problem it causes because it sure isn't good for the birds.
Raptors typically pounce on prey and kill it quickly. A bird on the ground (eating, say) that is surprised is far less lethal than a bird attacking. Like I said, though, probably not eagles.