That's the thing with birds of prey. They are there, but by their nature they are very good at hiding in wait so a lot of the time we don't see them, but they most definitely see us and any stray parrot that might be on the loose without the protection of their flock. It's just not worth the risk in my personal opinion - you must make your own choice of course but I simply could not live with myself if the worst was to happen.Good points - tbh I rarely see birds of prey where I am (which I know doesn't mean they're not there) but I have seen willy wag tails go out of their way to attack cats. I've also been chased halfway across a football field by a magpie. Didn't occur to me before because I'd never seen butcherbirds and magpies harass wild parrots but then again said parrots rarely hang out alone either.