How long does it take to be born in the yellow waist?

It takes about a month to be born in the yellow waist willow.The breeding period of this bird is from May to July, and after the pairing is completed, they will jointly camp together.It takes 4 days for the camp nest. After 1-2 days, it will start laying eggs. One day will be produced. After the output of 4 or 5 eggs, it will basically start to hatch.It usually needs to be about 10-11 days, and the male bird will be produced in the brood.