Our pullets are about 8 weeks now and they won't eat anything but the chick starter feed we bought when we got them. They are our first flock and clicking around everyone suggests all sorts of snacks but our chicks wont have any of it. Are we doing it wrong? Should I be cutting things up a specific way or something? Maybe they are still too young? It's still pretty chilly here so they are still in our house in a box but when we take them out (when its warm) they peck around through the grass and dirt but no go on any of the snacks I have tried to give them.