I just collected eggs and had another blue one. I know the hen that did this one cuz I was cleaning out under the roost and saw her on the nest. I stopped and let her have her privacy. She one of the two RIR's I bought. Well I've decided they are production reds. What something else could she be mixed with for her to be switching back and forth from blue to brown.I thought it was the Black Sexlink laying the blue one but not so. And no, she does not have blue feathers behind her ear. They are red. Weird. OK. I'm having a problem telling the difference in color when it's get to such soft shades. Someone please me what color this is. And this is the hen that layed it.