My "babies" are almost 8 weeks old. All mixed breeds. There are 13 and most of them are very big. They have all been in a GINORMOUS cage (Large enough for a great dane) inside the coop, so they have been around the other chickens. I want to start letting them out into the run, they are fully feathered, but I'm worried about them eating the "grown up" food. I am feeding "all-flock" to the chickens, but will this hurt the babies. I would like to keep them on their starter food a while longer. Thanks for any advise.