Another breed my mom and I have studied in depth, Aracauna vs. Ameracauna. The true breed is the Aracauna, and the true Aracauna breed in it's true form, is a white tuffed (or non tufted) rumpless bird with blue/slate colored legs. The true Aracauna has no other coloring variation, and the eggs are a true Robin Egg Blue. These chickens are pretty much gone. There are a small handful of them left, but try to get some. Really, try. And I don't mean try to get a wheaten or lavendar or any other color, try to get the white, rumpless tufted with blue/slate legs and bright blue eggs. Most likely, you will get a rumpless tufted bird that lays a bluish green egg. More blue than green, maybe, but not the Robin Egg blue.
Ameracaunas, which there is NO APA standard for, are Mutts!
From what I understand, the local 4-H allow kids to show either *true* Ameracaunas or EE's because there is no APA Standard on them. They cannot judge something if there is no standard to compare it to.