First things first, Have her Aviary vet checked to clip the nails and wings. Most Macaws like to shoulder ride due to being high up and they feel safe there. If you want to break them of shoulder riding, you have to get your macaw to understand the command and word NO. Train her using this word in a very stern voice, when she stops the action, reward her and say what a good bird she is. let her know that she is behaving in a way thay you expect her to. King cages are the best for the GW or stainless steel. Stay away from bargain cages you see online or cages from asia countries, they are made with powder coating that is not bird safe. King cages are made with baked on powder coating and bird safe. Buy the largest you can find for her. Best of luck Joe