I have estimated that my 2 olive eggers chicks are about a week older than the rest of my chicks. Over the past week, week and a half I have had a feeling one of them is a roo. It's comb is much redder than the other one and it definitely has chunkier legs. Well today I noticed he is definitely showing wattle growth where my suspected hen has not. He is actually a lot more laid back then his female counterpart. I am getting the same feeling that one of my sapphire gems is also a roo. As it's comb is much redder than the other 2. (These were all sold to me as pullets.) Here is a shot of my suspected olive egger rooster.