Ok, so, we have 13 chickens. We know for sure that one of our wyandottes is a male(it has a regular comb-not the strawberry kind) So, we think that one of our ri reds might be a rooster as well. no crowing and no cycle feathers yet. They are already 7 months old. Should we be able to tell by now? and, no one is crowing? I thought that would be happening by now. Any ideas??