How to divide the male and female

There are four aspects of Golden Skin's father.The first is to listen to the tweet, the public's crisp and gentleness, and the mother's call is monotonous.Secondly, you can look at its belly.At the same time, it can also look at its cloaca, the public's protruding forward, and the mother's backward.In addition, the color of the male and female is different, the male birds are more bright, the feathers are thicker, and the color of the mother bird is much dull.