We all have different opinions about adding an additional grey. You know how I feel. Of course, it is just my opinion.I would never add another grey, as Sophie would feel " threatened". She rules the animal kingdom. She is kind to both Kiki our Amazon, and Sunny, our sunconure. There is no jealousy. Sophie rules! She also rules fairly, providing more toys to the other two, than herself.I don't need another grey. Even though Sophie is 12, she continues to learn.We are at the point in our life where learning is fun! No biting, no chewing. Just a grey, interested in learning anything she can. Steps up to the entire family, and more! When she likes a new saying, or wants to learn... her pupils dialate and constrict. ( learning mode). For others... the dialating and constricting, is a warning.We haven't had a warning for many years. Yay for Sophie! Nancy