The reason why Bolu does not hatch eggs

There are many reasons why Bola not hatching eggs, such as poor motherhood, moving eggs or birds itself.Birds will start pairing in May, then prepare to build nests, and eggs in the nest.Usually it can produce 4-7 eggs, the color is light blue or pink, and there are gray-blue spots on it.After giving birth, the female bird must also be responsible for incubation. It takes about 13-15 days to get out of the shell, and then it will be fed by the male and female brothers.