Stumpy, an eight day old duckling has four legs, the two he moves around on and the two he drags behind him.
Owner, Nicky Janaway of of Warrawee Duck Farm in the New Forest, Hampshire, said “It was absolutely bizarre. I was thinking ‘he’s got too many legs’ and I kept counting: One, two, three, four,'”
Mrs Janaway said the animal would not survive in the wild.
“He’s eating and surviving so far and he is running about with those extra legs acting like stabilisers,” she said.
“He’s had so much attention he is having a power nap at the moment because he’s exhausted but we will making sure he’s OK and hopefully he will carry on and survive.”
The mutation is rare but cases have been recorded across the world.