I’ve seen many birds of prey try to take a squirrel, but never saw one succeed. I’ve seen hawks take plenty of field mice, voles, and rabbits. Squirrels have this way of appearing to go one direction and immediately reverse directions. That’s the same thing they do with approaching cars, but they reverse back into the road and get hit.
Oops. hit the button too soon. Anyway, these birds often get their share of squirrels as road kill.