We had pygmy goats once. We got them as adults and they where never friendly. We tried housing them with the chickens in the winter... I had the chicken food up on a 4' corner of the garage and had a 2x2 ran across to hold it there and for the chickens to perch on. Our wethered pigmy would jump up there and stand on the 2x2 to eat the layer feed! They also would chew on the tails of the chickens, I think they thought it was the hay? The chickens never bothered to poop on there hay but loved to scratch in it when it fell on the ground. They would eat the goat food if they had the chance, but they goats usually ate it up before the chickens finished theres.
Good luck I think goats are adorable but I won't try to house them together again!