I have 5 in my new flock, 3 australorp, 1 SLW and and ee/maran mixed cockerel. 4 mo old on most, about 3 on the SLW. We brought them to their new home 2 days ago. What's the best way to start letting them out? I wanted them to be familiar with their new coop, so they've been penned (sounded logical?). I want to make sure they'll return before letting them go out. Should I start with a few at a time and let them roam while I'm out there? Should I try to train them to come using treats first? Any advice is appreciated!