So, if they can both "display", how do you tell if you have a Tom or a hen? I've read that hens usually have a strip of feathers down the back of their neck. Their feet and legs will be smaller, but when you only have two the same age...it's hard to see the difference. I have a white one that is considerably bigger than the brown one, but both seem to have the stripe down the neck. The white one has started to "display" and I haven't seen the brown one do that. They are being raised from hatch-lings with chickens. I'd say they are about to reach the 3 month or more mark.