Hi Claire, welcome to the Greyforums. Kudos to you for doing your research before selecting your parrot. I have both or rather three: a TAG, a CAG, and a BF ZON. Ana Grey is 5; Sterling Gris is 2 and Louie, the zon, is 5. The greys I have had since about 4-5 months old. My zon is a re-home who was 1 1/2 years old when he came to live with me. Frankly either grey or zon is a wonderful bird. If you will check in the Amazon Room you will see oodles of information about amazons and there are oodles of threads about greys in each of the others rooms. Just read, read, read and ask all the questions you want. If I had to choose zon or grey I would not. I love both species.