What's wrong with the pigeon does not reproduce

There are generally three reasons for pigeons that do not reproduce. The first is gender issues. One male and one mother must be reproduced.The second is the age of age, and pigeons need a certain time to mature.The third is a health problem, and if you are unwell, it will also affect reproduction.This bird can breed more than 10 times a year, and it will have eggs after pairing.Each egg will produce two, and the male and female birds will hatch.