Gigi Hadid has hailed her daughter an "angel" on the youngster's fourth birthday

She wrote over the post, which contained a clip of Khai playing on a swing set at a park: "4 years of YOU. Happy birthday mama's Angel!"

Gigi also included a photo of her daughter's rainbow birthday cake in the post, adding in a caption: "Cake 4 bday breakfast always."

The mother-of-one - born Jelena Noura Hadid - posted a carousel of snaps in August that contained images of the summer she has spent with her little girl.

Her daughter was seen in the upload drinking water straight from a garden hose, cuddling in her mother's lap at a restaurant and climbing the wall of a bouncy house.

Other images showed the mother and daughter comparing hand sizes while hugging on the sofa.

Gigi also showed off Khai's personalized pink Versace robe - which has the child's name emblazoned on the back in gold letters.

The model captioned the photo dump: "Big Summer Roundup."

Referring to her jet-setting model lifestyle and the realities of motherhood, she added: "Best of Both Worlds."

Zayn has said Khai helps him name animals on his farm in Philadelphia, telling Capital Breakfast radio: "I've got a farm - I've lived on my farm for about five, six years now.

"I've got chickens, got a couple of turtles, got dogs, cats - eventually going to branch out to making it a bit more of a proper farm when I have the time, but it's a lot of work looking after a loads of animals.

"I want horses eventually, I would like to get some horses, too."

When asked if he names his animals, Zayn replied: "I do yeah. I think that shows a good owner.

"You have to be somewhat connected to your animals, and I like to name... my daughter helps me with naming them now too so it's fun."