I read somewhere that you can sex a Dark Brahma chick by it's color, females darker cloudy gray and males lighter and more silver. Is there any validity to this? I picked up a few st.run Dark Brahma chicks from TSC, and I picked the ones that were a darker cloudy gray. If they're more likely to be hens, I plan on going back and buying more of the "hen" ones. Lol. Thanks!