The most accurate way for the mother -in -law of Xuanfeng

The most accurate way for Xuanfeng's mother -in -law is to draw a haircut card.The card test is the DNA that tests it. Because the young bird has not yet developed, it cannot be distinguished from the outside, so it is more accurate by pulling the hair test card.It should be noted that hair removal is not just any hair. It must be pulled out of 5-8 hair from the bird's chest, abdomen or back, and it is not possible to remove the feathers naturally.