I've been taken my chickens out of there area once in a while, but it makes me nerves cause they get nerves cause there out of there pen, so I think they will no go back in. but so far as long as I have treats in my hand they follow me back. not all the girls follow me out just the younger ones. I want then to be able to free range, but then it makes me nerves because I feel being out in the open is a bad thing. so I only do it for a little while then bring them back in. I am not ready to let them free range on their own, but I'm trying.
Until you are confident that you've done all you can to the range area to insure their safety, I'd not free range them...it's no good for you or for them if both parties are scared to range. They'll not range out far enough to even forage for food in that manner, so the effort is largely wasted.
Do you have good fencing and/or dogs on guard to protect them while they range? Plenty of places to duck for cover from aerial attacks? A good rooster that will call out an alarm when a raptor or other predator is spotted and before it attacks? Are your birds flighty enough or wary enough on range to run and duck for cover if they are attacked from above?
These are all questions you might want to ask before ranging your birds. If you just turn them out and hope for the best, but do not have an adequate system in place, there's a good chance your nerves and their nerves are warranted and bad things will happen out there. Last, but not least, the right attitude for ranging is needed....the attitude that you will do all you can to insure their safety, while realizing that their safety is never 100% guaranteed and that's just life...all life, not just the life of a free ranged chicken.