Someone should tell the birds to look out – now cats are growing wings. At least, this cat in the Chinese city of Chongqing in China appears to be. Animal experts have been left baffled by the fluffy white moggy, who was born normal – but began growing wing-shaped appendages on either side of his spine when he was just a year old. Experts say the phenomenon is more likely down to a gene mutation, and say it shouldn’t prevent the cat living a normal life. – Credit
I looked this up and found multiple cats. Also, wiki has a "winged cat" page.