You know one problem I did manage to notice this year that I hadn't the past couple seasons, is when group breeding, the hens arent all going to sync up, lay their clutch and go broody at the same time. Instead they lay their eggs in their preferred nest, go broody on that clutch, meanwhile the hen next door is halfway finished laying her clutch and when that broody hen finally gets up to refuel she goes and lays on another hens eggs thinking those are hers. Mind you this doesn't happen all the time, but it does happen. Happens more with the younger hens on the yard I've noticed.
I'll see the hen on top of her eggs one day, then a couple days later I spot her on a different nest, then check the other original eggs she was brooding just to confirm what I already know, eggs went bad.
