Hi, I have 5 Ameraucanas, age 15 wks... three blue and two black. I have three Marans the same age and it's obvious that I have two boys and a girl with them. The Ameraucanas don't look that much different from each other. They have little combs (although a few are a teensy bit bigger) and no wattles. What should I be looking for at this point? I'm sure they're old enough to tell! I was watching them today trying to figure it out and it's a mystery! I'm assuming their combs stay fairly small? Thanks!