In mythology, it originated in ancient times. When a celebration was held in ancient times, a creature suddenly came, which was recorded as a phoenix at that time. Everyone feels lucky and can lead all animals to dance. In fact, there are many legends of phoenix in ancient records, and even this spirit beast has been caught. Then why does everyone respect it? In fact, you can understand it in the explanation. First of all, it is considered as a spirit beast, so it is naturally considered as the king of birds in the records. This is still decided by people themselves. At the same time, it belongs to fire, which is the only bird attribute among the four beasts. How can it not be the king?
At the same time, it can be reborn, which will add more noble attributes. As a representative of women, she actually has some expression of human nature, of course, she can't be subordinate to birds. Just like the ancient emperors, they were all represented by dragons. Can dragons be under aquatic life? Of course not.
Moreover, in mythology, it once saved the lives of birds. When the food disappears, it gives its own food to save lives. So, all the birds gave feathers and obeyed it. This is the real reason why it is king.