I always leave young birds in the coop only for about a week so they get it that this is home. Then open the pop door and and allow them access to the run. when every one is going back into the coop at night I let them get used to this routine for a couple of weeks before I even think about letting them out to free range.It can also help if you give them any treats in the run late in the day so they get the idea that the run is a good place to be at dusk.A handful of scratch can get them all back in the run and then you can just lock them in and let them go to bed on their own.don't try to put them in the coop too early as young birds tend to stay out till the last minute, older birds go to bed early but the kids still want to stay up and play just like kids. Once their in the run see if they go to roost on their own just later. It will take time for them to get it but they will, some faster than others Just make sure they consider the coop home before you try free ranging and start with short periods of time late in the day and slowly extend the time their out and you'll be fine. My mixed age flock breaks up into separate groups and range over about three acres but they all show up at bedtime