Although I am extremely familiar with the physiology of birds I am NOT familiar with there inherent personalities. Can you guys suggest any good books? I fell in love with an unavailable sulfur crested cockatoo many years ago and have wanted a cockatoo ever since. This time around I've chosen a muloccan cockatoo. What expectations should I have? I'm of the opinion that nature beats nurture every time. So what is the nature of a muloccan cockatoo versus a sulfur crested cockatoo? Psittacines live a VERY long time so I want to get it right. I don't want to end up adding another dysfunctional parrot to the world over some selfish want. Help?