Can I keep chickens with a pygmy goat?

I have 11 chickens that live in a 7x7 ft. shed with a fenced in area ( 7x5 ft.) around it that they run around in. I've wanted to get a pygmy goat but I've been reading that you can't only get one. So I was wondering if my chickens could keep a pygmy goat company insead of getting another goat. I was wondering how big the housing for the pygmy goat had to be because I have very little space and I don't want to spend too much money.