So I'm a first time chicken owner and I'm having a very frustrating problem: my chickens don't come in at night if they can help it. My back yard has a fence at the back but no fences on the sides (and it's not feasible to fence the yard in). I have a 3-chicken flock with a pretty small coop, and I was letting them free range but one night they didn't come home, they must have slept somewhere else. After a few days I managed to catch them and stick them back in the coop for several days. Then I had some success for about a week scattering food around 5-6pm inside their run, waiting for them to go in, and then closing the door. They'll go in the coop once they're in the fully enclosed run and can't get out and it's night time. After having to catch them twice I left them in the coop / fully enclosed run all week, and today I built a pen with 40" garden fencing... over 200 square feet, plenty of space... but it doesn't have a roof. They were happily playing around in the pen (I included some of the cedars they like hanging around to help them feel safe) but when I went out after dusk they were nowhere to be seen again. What do I have to do to get them to come back to the coop and stay there at night? Should I put more netting up higher to keep them in? They're about 14 weeks old and I don't want to worry about them laying eggs where I can't gather them!