Having them free range also cuts down on the feed bill, so I don't intend to keep them locked in their pens 24/7 other than maybe the tiny bantams, who are hawk bait. Even with them, I may on occasion allow them out of the pen if I'm right there with them watching, but that remains to be seen. My banty Cochin, Shadow, has free ranged with the flock her entire three years of life, though, the newer bantams, the D'Anvers are much more rare and smaller than she is, so I want to be super careful with them. They're not easily replaced.