I got the bird in question from our local family-owned feed store, and they get them from a hatchery (I don't know which one). She's supposed to be an Americana. The bird is 11 weeks old. The tail is questionable to me, so I'm worried that I might have a rooster. So far the bird is the same size as the other in the flock. There haven't been any signs of crowing yet. Thoughts?