Hi, I am new to raising chickens. I have 7 chickens right now; (2 chicks that are 6-7 weeks old). I free range them. I have 4 silkies, 1 americana and 1 bantam. My favorite part is the fresh eggs; but I enjoy watching them, and like having them roaming around the yard eating the bugs/ticks. One thing I have noticed is their food disappearing quickly to find that squirrels and chipmunks are entering the coop and helping themselves all day long. Was wondering what I could do about that?