I am considering letting my birds free range. That being said, here are my concerns. I want them to continue to lay eggs in my coop and not in my neighbor's hay which is where their birds lay--and elsewhere. There is no way to keep them from mingling with the neighbor's flock (unless I invest in a privacy fence which isn't a possibility). Will they return to their roost if they mingle, or follow the crowd and roost next door? Would it be best to keep them in their runs during the morning and let them out in the afternoon? I would like to cut down a little on the amount of feed they are consuming, and increase the color of the yolks. Plus I like seeing them out in the yard. Thoughts anyone? Thanks!