I have a run big enough for my birds but want to let them range when we are able to watch over them. My thought is to always give them treats in the run and either ring a bell, or clang pie plates, as a signal that it is snack time. (Pavlov) My hope is when we have to leave in the middle of the day we can bring treats to the run...ring the bell... and the girls can be safely put away. Will this work?? I am hoping so... since I already sold my wife on the concept!