I have just gotten into having chickens around and wanted all brown egg layers. I have a welsummer, a RIR, and two buff Orpingtons, as well as a welsummer roo to keep them company. They have just started laying consistently the past few weeks. I am getting tannish eggs sometimes a little darker and a smaller white egg. Which one can it be? I thought welsummer eggs were really dark and RIR eggs darker than Bo eggs. I would never get rid of her now but I'm just curious.