This is an article by Sally Blanchard and, although I don't agree with everything she states here [points 21 and 22 and the 'not all cockatoos are needy' HA! anybody who has had experience with a number of cockatoos will tell you that this is, indeed, God's truth!] but she is pretty much right about everything else.
https://companionparrotonline.com/Nurtu ... ce_25.html