My green cheek conure is possessive of the toys in his cage and on his stand meaning if I touch them he will run over to me and nip me as long as I handle them. That's not a big deal as I just move him to another location if I need to handle his toys.
However, he now is displaying this same behavior toward the props I am using for fetch (a small white box and four colored shapes). He was not like this at first but since he learned the trick two days ago he apparently now considers the props "his" and has become possessive.
If I set up the box and shapes before I place him on the table it's fine but once he puts all four in the box if I go to remove them he charges and nips my hands when I touch the box. If I go to set up the shapes on the table he charges and nips my hands as well. He only does this if I am holding or touching the box or shapes. If my hand is empty he doesn't care.
I don't want to reinforce this... What should I do? I hate the interrupt the "flow" of training by removing him from the table every time I want to move or re-set the props but maybe this is the solution?