I've only had chickens a few years and I have never seen this till now. I've had a black Australorp hen sitting on eggs about 3 weeks. I started getting a really bad odor from the hen house. I eased the hen up only to find very rotten eggs. I moved her and cleaned the nesting box so I just checked the next hen(a big brown"Production" hen) and it was the same. Do I need to get Dr. Phil to talk to my hens? Put them POULTRY PROZAC?? Did they have unhappy chic-hoods or what? I need advise on this one. The rest of my hens nested in bushes around my yard and now have lots of babies chasing them around, could it be something in the hen-house?