Mometzcopinqui

Mometzcopinqui or Mometzcopiniani, is a term usually used to refer to women born on the date of "Ce-Ehecatl," (meaning "One-wind" or "One-rain") which caused them to develop certain supernatural abilities. If a man was born on these dates, the would either be Temacpalitotique (charming deceivers) or Tlatlacatecolo (noble sorcerers).

Myths & Legends
When a woman was born on Ce-Ehecatl dates, they would gain the supernatural ability to remove each of their limbs, and exchange them with a bird (turkey) legs or wings (and sometimes beaks), which would allow them to fly. She would "unscrew" or "dismantle" her limbs, and hide any currently unused ones under her home. The women who were born, and only women, on the (one-wind) dates, would have the ability to bewitch and to achieve this they should remove each of the joints of their legs to later remove them and change them for legs of bird, which would give them the possibility to fly. She was known to feed on the blood of babies, which was the symbol of life and was considered the only thing they could consume. In colonial times, they were confused with European witches. The myth of the witches who terrorize a town by feeding on the blood of newborns endures to this day. Although they are commonly associated with a European imaginary, these creatures have also been predominant figures in the pre-Hispanic culture of Mexico.

The turkey costume is also an essential part of the Mexican worldview, since it belonged to Tezcatlipoca, the god of heaven and earth, who could move through the different planes of the cosmos.