I have 8 chicks that are almost completely feathered out, not sure how old they are. I have had them outside twice now for a couple of hours at a time. The funny thing is, is that they don't seem to know what to do, they huddle and move around in a group but don't scratch or really explore. I put them out in a area using a toddler fence. Will I need to somehow show them how to range for food or will they eventually pick this up on their own?