I still don't know who is a rooster and who's a hen. The chicken below is my favorite, Alice, and I hope she's not Alex! Her wattles are looking roosterish. I think these buff colored birds ARE in fact Buff Orpingtons. They have pinkish-white legs and they are definitely NOT Reds.
Below: Alice's head close up.
Dorothy, who's curious and always likes to jump up to roost on me. I'm pretty sure she's a hen.
Hazel, who I think might be a New Hampshire Red (she's lighter than the other reds) and is reasonably friendly.