In this video, I've captured something I've mentioned multiple times on the blog. Parrots using their toys as weapons.
As always, I feel compelled to mention that we don't condone violence in our house. The greys and caiques will frequently use hanging toys to try to hit other birds standing under the toys. You'd think they'd learn to stay out from under the toys.
These two do this very regularly, so I must conclude that they get some enjoyment out of it. Note that they are both very good fliers and could easily escape the situation if they wanted to. Also, I do closely supervise and intervene if things escalate (i.e. parrot physical interaction).