a goshawk that can be trained to come to the fist without a reward can  follow on safly. there is a way to get them to do that.  Set up easy slips as many as possible early on in training off the fist and do it in open country and call her up from the floor. It will first start of by landing at your feet and later finds your fist a better perch.  Play this game one every time you go out. This was also used in the days before the scales and transmitters to see is the bird was keen to hunt. How else can you get a goshawk fit in the field. ok high jumps.