OK, so just under a year ago we got out flock from McMurray, and over the course of the summer acquired about 10 more. About 40 chickens total. Large coop, an outdoor protected area plenty large for them to play around, etc. Even came out on nice days when we were home. So about 2 months ago the owners of the farm (I live there as well) introduced 2 roosters (who got along well) and then we started noticing blood on the walls, about chicken height, and a bit on a few of the birds. The owners decided it was too crowded in there, so we finished off the 'coop' on the other side of my storage shed. It's got lots of air flow, is about 7' in height and about 7' by 12' with plenty of perching space. I moved my 16 hens over there, and since then, there have been no more incidents. Problem is, no more eggs! I get maybe 2 a week if I'm lucky right now. We are in central virginia, and are out of that nasty cold snap now, but what I find strange is that the other set of birds (about 24) are laying like mad!! Mine can only get out on weekends since the other flock is out M-F and they get mixed up. Do I need a roo? A run out for them during the week? I realize it's winter, but it's confusing me that the other flock is producing, and I'm getting nothing. Thoughts?