What's wrong with the crimson parrot not breeding

There may be many crimson parrots that do not reproduce.For example, birds have not yet matured, daily intake is not enough nutrients, or lack of a breeding nest.There are many types of birds, the distribution is relatively wide, and the reproduction time in different regions is slightly different.Wild birds usually built nests in the tree hole, and then lay eggs in it. They can produce 3-4 pieces each time. The eggs are white and the females are hatched.