Hello! I have 2 chickens that roam free. (they mostly stay around the barn and my shop; a small area) I raised them fro 2 day old chicks. they use to eat chicken formula. But, now they don't seem to touch the chicken food and I bought some scratch and they don't seem to like it either. (the goats eat it.) They're not skinny. Are they happy finding food on their own? I have 10 acres but, they stay close by. Thanks in-advance for your help!