I always explain that falconry is fishing in the sky. We have the big fish in respect to quary, however there are always bigger fish out there.
Sometimes your number will be up.

I was weathering a falcon in my back yard. There were 8 dogs running around and I was sitting drinking a cup of coffee 8' from the falcon. A passage RT dropped out the sky onto the block the falcon was on. Nobody was hurt but it proved to me how quickly things can go wrong.
I consider starving hawks to be the biggest danger to our birds because they are not predictable.