Hello! I live in south Florida. My son is about to construct the chicken coop for about 3 or 4 chickens. My yard in fenced in and I have a golden retriever (11 months old) pup. I am seeking advice on coop size and also what to do when we have frost warnings. It doesn't happen often but I want to make sure I am prepared. Is it advantageous to get chicks and let the dog get to know them as they grow into adult chickens?