The 13 Going on 30 actress named the bird after the Mean Girls character of the same name, played by Rachel McAdams. Picture: AP

Jennifer Garner's pet chicken tried to kill her new chicks.

The 46-year-old actress and her children Violet, 12, Seraphina, nine, and five-year-old Samuel - who she has with ex-husband Ben Affleck - keep hens at home and after recently adding to their flock, the Peppermint star had some problems when one of them turned on the newcomers.

She told talk show host Ellen DeGeneres: "They're so fun. They're such nice pets until they get mad at each other.

"We had six chickens, we got seven new ones, babies...We decided to introduce them, and Captain Hook, one of our older chickens, was not nice.

"She started trying to attack and kill the new chickens, specifically Hennifer and so we got a small coup to protect the new ones.

"I finally said to Captain Hook, 'Look here girl you have got to shape up or it's gonna be solitary isolation, and they're all gonna be having the run of the coup and watching you in here."

Unfortunately, Jennifer's pep talk hasn't been enough to make Captain Hook change her ways.

Asked if she's stopped trying to attack, the actress admitted: "No. Not yet."

But the former Alias star left the presenter delighted when she revealed her plans to name one of the chicks after her.

She said: "I have two more chicken names coming up, I have Oprah Henfrey and Ellen DeHenerous.

Ellen replied: "That's adorable, take care of them, I don't want anything to happen to Ellen."

Earlier this year, Jennifer mourned the loss of her favourite chicken, Regina George, who passed away from "natural causes" in March.

The 13 Going on 30 actress named the bird after the Mean Girls character of the same name, played by Rachel McAdams, and she loved to take her feathered friend on walks.

Announcing that Regina had gone to the big bird house in the sky on her Instagram account, Jennifer posted a video tribute to the chicken and wrote: "Please enjoy this tribute to Chicken Regina George who passed away from natural causes. #shewasourfavorite #RIP #shelivedagoodlife [sic]"

The post also featured a picture of the unfortunate chicken's grave, with a plaque which read "R.I.P. Regina George. July 9 2017 - March 20, 2018."