Thanks for all the nice comments!
My chicks are 2 months old. I have 3 bantam barred rocks and 2 polish, 3 turned out to be roosters! I can't part with my 2 bantam roosters, but am going to trade the polish in for 2 more bantam pullets today.
They are good flyers, but haven't attempted to go over the fence. They have been free ranging for a month now and love all the goodies they can find in my flower and vegetable beds. Hope they stay happy inside the fence and don't get any ideas.