Holly Madison has bought two chickens.

The former Playboy model - who gave birth to daughter Rainbow Aurora in March - has welcomed the birds into her already expanding brood and is excited about looking after her unusual new pets.

She posted a picture of the hens on Twitter along with the words: ''Meet my new pets.''

The busty blonde later devoted a post on her blog to her feathered friends, recruiting fans to help her name them.

Holly, 33, wrote: ''Someone dropped off these little buggers at our house. What should we name them?''

One fan replied, ''Lady Cluck and Alan-A-Dale both the chickens from Robin Hood!! (sic)'', while yet another seemed overjoyed her new baby would have a healthy diet, enthusing, ''fresh eggs for Rainbow!!''

The 'Girls Next Door' star was famed for being Playboy mogul Hugh Hefner's number one girlfriend, but has since settled down with her fiancé Pasquale Rotella.

Holly has been struggling to adjust to motherhood and admitted breastfeeding is a lot trickier than she thought it would be.

She said: ''Breastfeeding is the biggest challenge. I took classes - and I don't want to discourage anyone from nursing - but I'm surprised at how much work it is and how much you're on call. I'm happy to do it since it's healthy for my baby.''