What does it mean that voles become quails?

1, voles become quails, which means voles become birds, and the connotation means that voles have increased like birds since Qingming.

2, vole into _ refers to the second paragraph of the twenty-four solar terms Qingming.

3. The vole changes _ Yi Zhou Shu, an anonymous edition of the Warring States Period. The original sentence is: On the day of Qingming, the world will pass through China. In five days, the vole will turn into _ (Ru), and in five days, the rainbow will begin to see. "

4. It means "On Qingming Day, Tung began to blossom, on the fifth day, the vole became _, and on the fifth day, the rainbow began to see." _ is a kind of quail, and "vole becomes _" is a misunderstanding of the ancients.

5._rú means that ancient books refer to quail birds.