Angri chicken, what do you mean?

First of all, it's Chang (O), not Ang.

Pleiadian chicken, the Pleiadian star, is one of the 28 places in China mythology and the fourth of the seven places in the west. It originated from China people's worship of ancient stars, and it is the product of the combination of ancient China mythology and astronomy.

Pleiades, or stars, is an ancient astronomical term. A night usually contains one or more stars.