Well that is disappointing news. So bizarre that he started the same behaviour with your daughter. Have you taken him to an avian vet to have him checked out and to discuss this behaviour? I wonder if there is something hormonal going on that is abnormal and if they can treat it. It concerns me for rehoming if this is the way he’s going to be with everyone. That won’t last long unless you’re able to find someone who can deal with this type of behaviour.