If a hawk is hungry enough he'll even go after deer! There's video on youtube of a hawk taking down a deer, it's actually pretty cool. My turkey free ranges all day everyday from 6 am to 8 pm with our ducks, she goes right in the pen and roosts at dusk! She's very smart, and loveable cuz when we get home she runs to us! Well my husband brings her fresh fruits & veges from work everyday so that may have a little to do with it, lol.
But back on subject, we have 4 regular red tails, & they even have a nest about a football fields length away from our house. Owl we have too, but never no problems from either.