EE's seem to mature later then most. I had three EE's I thought for sure were Pullets and guess what nope lol. EE's seem to be tricky. One thing I did notice is the way they carried themselfs , more tall like. I had one that was 24 weeks and never crowed and didn't want to get busy with my hens either. Just late bloomer. Also the way they held their head , alert like was also something they all did as well. From photos looks alot like mine , last picture the way the head is held looks like a boy to me. None of mine grew combs either.