I did the "buy a bag of chick start & grow and get 6 free chicks" from southern states today, and I was wondering if and when I can feed them something other than the start & grow, like bugs (I just found 4 mealworms under a piece of wood around my garden pond). I didn't think too much about this, figuring I'd just feed them the start n grow until it was time to graduate to the regular feed...but I've seen in some posts on this forum that some people feed their adult chickens almost anything, like table scraps. So, I was wondering if and when it would be safe to give my new babies some variety? They are day old barred rocks. TYIA!