I have six chickens who are approaching two years of age and when they began to lay again this last January they began eating their eggs. I have tried many solutions but nothing has worked so far, included rolling nest box inserts (which don't fit the existing nest boxes well), mustard eggs and collecting frequently. I know many people will say get rid of them and start over but they are pets as well as our egg suppliers. Sadly, I am about ready to get rid of the hen I think may be the biggest offender but before I do, I want to make sure I've exhausted all possibilities for solving the problem. My question is this: if I ordered a set of metal rolling nest boxes, could they just sit outside the coop? The run is totally chain link fenced, even the top, so predators aren't an issue. I've researched on this site and no one seems to separate their coop and nest boxes. Is there a good reason for this? Thanks for the help.