Hi Greg,
I am one of the founders of the breed and the club, starting when we formed the Ameraucana Bantam Club in 1978. I\'m also a lifetime honorary vice president of the club, and currently serve as president. Our idea was to create some order out the chaos that existed back then, not to mention the circus-like atmosphere surrounding colored egg (easter egg) chickens. We have a written standard. The rules for admitting new varieties are governed by the American Bantam Association and the American Poultry Association. My personal opinion is that we probably have enough varieties already, since many of them are very rare and need more breeders. But to each his own, and I\'m fine with that.
But to answer your question about booted colored egg chickens, if someone has them they are not and will not be Ameraucanas. That would be like breeding a clean legged Cochin - what would be the point? Good luck with your birds and welcome to th club and this forum.
Mike Gilbert