so i have a problem i was hoping id never had....my flock of orpingtons µhave began eating there own eggs i thought it was a rat stealing them or something, but nope, i caught the girls in the act today. these are my lavender and cuckoo orps so culling is really really really a last resort, they are worth (and have cost me so far) an awful lot of money (we're talking hundreds of euros) so what are my options? i was thinking first of trying mustard injected into an empty egg shell? see if this will help? ive up protein in the feeds and given extra oystershell tubs around the coop what else could i do? ive hard of rollaway egg boxes...how do these actually work and are they expensive????