I have 4 hens, 2 EE's, a BO and a RIR. The other day I went out to collect eggs, and found one I cannot explain. The RIR lays darker brown eggs, one of my EE's lays blue eggs. On the end of the RIR's egg, there are BLUE splatters, quite a lot actually. I am at a loss as to how this could occur. Any ideas out there? Anyone had this kind of thing happen?