Hi! I am in the market to get an exotic bird, preferable a medium-large to large bird, like a Patagonian Conure or an Umbrella Cockatoo. Even though I have never owned an exotic bird, a good friend of mine has an African Grey and whenever I'm around him we get along very well and he seems very happy to sit with me and 'chat' a bit. I will be away from the bird for about 7 hrs M-F because of school but will dedicate the rest of my time to it. I will also take it with me whenever I travel so it wont get stressed out being away from me. Is a Cockatoo a good choice for me? Will it be okay being away from me during the day? If not, what other medium-large to large bird would be a good suit for me? is it better to get a rescue bird that is older and more mature or to get a new born?