What happened to the tiger parrot without breeding

The tiger parrot may not breed because the gender of the two birds is the same, or it may be because of lack of nutrition or not preparing to breed the nest.This kind of bird can breed 3-4 times a year. From June to January of the following year, each nest can produce 4-8 eggs. After 18 days of incubation, the chicks can be out of the shell.After the females will be fed for a while, when the feathers grow, they can live away from the nest.