Hello all, are my girls being picky or what?!? I have offered my four girls oyster shell pieces, and they are not eating it at all. Are they being picky or are they not sure what it is? I do not want my eggs to break easily when they lay. I have offered other things as well like veggie scraps, oatmeal, and other things, and they ate a very little of the oatmeal and that is it. They will not touch anything I offer except for their original food that I have gave from day one. Any suggestions?