What's wrong with the grass and birds not breeding

There are three reasons for the non -reproduction of grassables. The first is a gender problem. It must be male and male.The second is the age of age.The third is environmental problems. If climate is unwell, it will not reproduce.This bird's nest can produce 4-6 pieces, and the eggs are milky white. They usually incubate for 14-15 days. However, because the natural incubation rate is relatively low, other birds are usually incubated.