Would anyone care to give their opinions on the sex of my two blues? These are my first chickens (2 Blue Ameraucanas + 4 Transylvanian Naked Necks). Both of the blues are the same age, 7 weeks, but they've had completely different personalities from the start. The lighter one (Charlotte) is fearless and somewhat larger than the darker one (Margo), which makes me wonder if "she" is actually a "he." Both are sweet, though. Ignore my naked-necks - They are already easy to tell between the pellets and roos. I really want them both to be hens (I'll have to return any roos to the farm they came from, because I'm not allowed roosters in my Phoenix backyard). Opinions anyone? Thanks in advance!