We're in Day 4 of watching our new chicks (Golden Comets) grow. We had ordered them from a feed store and our 6 were in with dozens of Comets that had just come in. On the first day, aside from some marking differences, they all pretty much looked alike. But now here on day 4, 2 of them have major wing feathers coming in, 2 are at the little stubby feather stage and 2 really don't have any feathers starting at all. Since these are our first ever chicks, I was wondering if some just develop faster than others or if they maybe weren't all hatched on the same day and some might be a day or two (or more) older than the others. Any of you more chicken experienced folks know for sure?