I assume your grey is a flyer if he is landing on your head. Ana Grey is a flyer and if she goes where I don't want her, my shoulder or for my head, I just down my shoulder or shake my head. Sometimes I wave my hands and tell her, "No." She gets the picture and the action stops. Ana Grey hears "that's not nice" all the time and if I do something she doesn't like, I get this statement right back at me. They are very smart little birdies, they get the drift of things real fast.