Cat cut and eat umbilical cord from newborn kitten

My cat just birth newborn kittens and i have left my action cam in the lair. When i watch the videos for first time i see a mother cat how cut and eat the umbilical cord !

[@hteepaw180]

If the cat on the side is male, get it away from the queen and kittens asap. It might eat the kitten and try to mate with the queen.

[@KirksCORNER-1983]

Its a female obviously.. and only females are Calicos, and this is a Calico cat!!