Ok i have caught them in the act. It seems to be one Barred Rock leader and the others follow. What happened is we got a new batch of feed from our feed mill we always use and have not had issues with. WELL, when we used our new batch right before Christmas my husband noticed it looked a little different. We feed them layer mash a recipe of our own that we never had problems with previous to this. It was more brown looking. So he filled up their feeder with a 5 gallon pail and the next day we checked and it was everywhere in the run on the floor. So this was a weekend day (Christmas weekend) so I called right away Monday. They said they were making calf feed right before our order and it had molassas in it. So we thought we try if for a few days and see if it was just that one time. WELL it wasn't by New Years weekend they had started eating eggs. Since then I have taken all of the old feed back and got new stuff. I have fake plastic easter eggs in the boxes that they peck and don't break. This is what I have done to date; I blew out about 8 eggs so far and filled them with; dawn dishsoap (ate those), Yellowish/Brown mustard mixed with Franks hot sauce and dish soap (ate those), Dijon mustard/horseradish, cayeanne pepper and white vinegar (ate those). I gave them a bowl of milk today that they drank all up, put oyster shell in the coop that we never had to use before, gave them a pint jar full of tuna fish today. I give the BOSS all the time. What ELSE can we do!! Darn feed mill!!! Oh, and I cleaned out all the nesting boxes and even blocked one off that was the worst (had the most broke in) for 2 days... My husband and I are at our wits end. I am going to try and quarantine the leader tomorrow the sassy barred rock and see if that helps... Our ladies are all new this year and this is our first year with them. They were doing SOOOO GOOD! It makes me think that this might not all be worth it. The eggs were just getting to be a really nice size too!! PLEASE HELP ANYONE!!!