I took a picture of two of my BR chicks (5 days old) today, the little pullet (on the left) and cockrel were conveniently resting next to each other. Sorry about the funny color since my camera doesn't seem to think it needs a flash with the red light nearby, but you can see the more distinct yellow spot on the pullets head and can see that the male has a bit more silver in the body fluff. She has more black on the fronts of her legs, too. Ideal marked him for me, but I could tell who he was even before I saw the purple mark on his head because of his coloring!