We had a buff Orpington hatch 5 eggs on Tuesday. She's our only laying buff, and we also have 5 RIRs and 4 silver laced wyandottes in with one RIR rooster. Of the five chicks, 3 are dark red like RIR chicks, one is a pale yellow like a buff orp chick and the 5th is a dark red with a V shape on the back of its head. I know RIR x with SLW are sexlinked, but which color is the pullet and which is cockerel? And which breed of hen might this one's egg have originally come from? She sat on 6 eggs that were all laid within 2 days, so 5 of the 6 eggs had to have come from other hens.