I'm new to all this. I'm trying to figure out if my chickens are girls or boys. I ordered 6 buff orpingtons and 6 Rhode Island reds from Meyers hatchery. I know the sexing is not 100% accurate. They are 10 weeks old. 5 out of 6 of my RIR look like they are Roos. 2 out of my 5 buffs also look like they may be Roos. I've been reading on here about how to tell. Some have large combs, and weird tails. The RIR feathers almost look silky and shiny. They are also starting to "dance" with there hackles raised. I don't hear crowing, but they make an awful noise that maybe the beginnings? I'm so upset about it all. I just don't know how to officially tell. Can they really be that off with the sexing? I mean, come on, I have 11 chicks. You would think, maybe one, maybe two, but almost all of them? I've read, about saddle feathers. Not sure I understand what that means. At what age will I know definiantly?