Thought I'd share this. I heard feeding Black Oil Sunflower Seeds would end egg eating. Had a problem a few years back and tried it, seemed to work but often these things are a cycle of boredom or habit anyway so I wondered if the BOSS really had anything to do with it. This winter the hens seem totally unwilling to go outside, it's been wet and mucky rather than our usual clear cold. They got into egg eating again and I was loosing about 2 dozen a day, I'd find the mess and empty shells instead in the nests, so I was down to about 6 dozen eggs a day. Got a bag of BOSS and started feeding a grain scoop morning and night (to about 80 hens) and in 2 days they stopped. No idea why it works but if you need a cure there it is. BOSS is high in protein and calcuim so I guess it could be dietary, or the fun activity of finding the BOSS all through the straw. Last time I kept feeding it till the bag was done (50 lbs) I just tapered off it towards the end so there was not a sudden stop.