I'm sure I saw you post this question in a different post, do be careful about double posting
Like boats said, this is a 101 question. Breeding a bird isn't as easy as shoving two birds in a box and waiting. That's why a bird costs so much, if it was easy everyone would do it. To breed a bird you need to have an encyclopedic knowledge on the particular species and a vast sum of money held away just for them in case they get sick which is more than likely. you also need a large amount of very expensive equipment to care for chicks if the parents reject them, which with hand reared birds is more likely as they never saw their parents feeding them so don't know they need to. you also need to be trained in hand-feeding, it's not just shoving a syringe in their throat and squeezing food in, it's incredibly easy to kill a bird when hand-feeding.
Let's not forget the swarms of Too's stuck in rescue centers and abusive homes. Is it really fair to bring them into that life just to line your pockets?
In short, don't start breeding birds