I have 3 true Black Ameraucanas from John Blehm. They are currently 13 weeks old. I had a 4th, who was obviously a roo early on, and I sold him at chickenstock. I bought another, who looked like a pullet at the time. Now, I'm inclined to think the remaining 3 are all roos, too. All of them are huge! All of them have red combs with 3 distinct rows. All have the same saddle and hackle feathers. Could I be that unlucky? Suspect #1 - Bigger than the other two. Nearly as big as my Buff Orps Suspect #2 - bought at chickenstock as a pullet, who had no tail at the time and was not huge. Suspect #3 - always had a huge attitude, crowed (I think, at any rate, made a godawful noise) when I brought home the new Barnevelders. never had a tail, but seems to have a nice set of saddle feathers. eta - I should add, all 3 are at least a third bigger than the Barnevelders, who were hatched the same day. The Barnevelders are supposed to be a bigger breed than Ameraucanas. I'm not sure if my Ameraucanas are larger because they are breeder stock, and the Barnevelders are hatchery stock. What do you think?