Yesterday my son was leaving for practice and saw one of my Production Reds on the outside of the backyard fence. He tried to shoo her back into the yard but she kept avoiding him. I have said to myself I was not gonna clip a wing unless they tried to see if the grass is greener (browner in my case) on the other side. So this morning while they were sleeping I went in and clipped my 6 pullets wings, right side only. They are 16-18 weeks old. I left my 22 week old cockerel alone as he is way too heavy to fly. I even had to add an extra roost level because he could not fly up to top from the bottom one ( about 2' height difference, now 3 roost are 1' higher than the lower one ). Hopefully the off balance of having one wing clipped will keep them in the back yard (18,000sf) that is huge.