Yes it's possible. But there's a bit more to it than chickens. you would want to let them out hungry, otherwise they will not be in much of a hurt to get back to their coop. And if they don't get back in a hurry, they will start getting picked off by hawks. And the trees, will not help at all. That's where hawks will pick them off. And raising them from a young age, is possible, but it isn't like a game birds. You would need to hand feed them, which doesn't give them the same nutrition as parents. The best age to get them is when they are called sqeakers. They will be 1-3 months of age at this point and will easily resettle to your coop. So yes, they will return, but many will get picked off by predators, so it won't work all day. So it's best to only let them out for an hour or so a day.
I hope this helps.