This chick is 3 weeks old, came with a batch of RIR/Maran chicks. The guy stated that this chick was a neighbors egg and he is unclear of the heritage. The RIR/Maran chicks showed cockerel early, at two weeks, but this chick is in question. Any ideas on breed and/or sex? This one of the RIR/Maran chicks,at two weeks, that presented early.