Is the yellow waist and the willow warrior be born?

As a bird, the yellow waist willow warrior is naturally not born, but an egg.The breeding time of this bird began in May and continued until July.When breeding, the birds will call for love and then match.The two birds that are successfully paired will be set up together. Its nest is generally bottle -shaped, which can be better concealed.It can produce 4-5 eggs at a time, and it takes 10-11 days to incubate.