When you talk about parrots and aggression, there are just a few reasons:
1. It's a wild-caught bird that doesn't trust humans
2. It's an abused bird and, by abuse, I mean real abuse and not just severe neglect
3. It's hormonal
Now, we know that Rio is not a wild-caught and we know that he hasn't been abused so the ONLY other option is that he is sexually frustrated and, taking into consideration that you don't keep your birds to a solar schedule as they should be kept and that he has no mate, the answer is pretty clear.






