I'm in here from a link in another thread, but my late ameraucana and welsummer will do this if I lay them down very gently and slowly let go. I think I know what people are talking about with the hypnotism but I've never gotten that to work for me. My birds are just really tame, docile and trusting. I play with them and hold them a lot.I’ve never done that with my birds beforeI’m guessing it has something to do with once they are put on their back they kinda just drift off?