We have 7 week old chicks. I am wondering if my easter egger might be a rooster. It has a much longer tail than the other three and is our "fiesty" chick. Although she is still super sweet, just more active and assertive than the others. In doing research to try and figure out how to tell, I'm also wondering about our Rhode Island Red. She looks the same as the others in size and shape but her comb is more developed than the rest. We're only allowed to have 4 and we can't have roosters so I'm really hoping they are all girls. We have a Buff Orpington and a Barred Rock too that I'm almost positive are girls.