How to distinguish between Mother Xuanfeng

Looking at the crown: the mother -in -law of the Xuanfeng parrot, you can first watch the feather crown, that is, the yellow hair on its head, the yellow hair is mostly a male bird, and the less female bird.Looking at ear feathers: It can also be divided into mother -in -law, that is, the red spots under its eyes, the male birds are more bright, while the female bird is dim.Listening: There is also a difference between the calls of the two. The roar of the male bird is more pleasant, and the female bird is more monotonous and noisy.