My 4 16 wk old pullets have received complaints about "roaming" outside of our property. They told us to ensure our chickens are contained on our property. They used to do this a couple months ago but we thought they stopped, however the date of the complaint was 11 days ago, so it must've been when we were all at work. We live in a suburban area surrounded by 3 houses, one on each side, and the fences are all theirs so we can't put extra fencing on them. We let them wander around our backyard but Im not sure what to do now, their coop is obviously way too small to be locked into, and we can't get a chicken run because it's so snowy here. What should we do?