I got caught up in the whole Ameracana, Araucana, EE thing because when I was looking into buying some. I kept seeing birds that didn't even resemble each other. Some had ear tufts, some didn't. Some had tails, some didn't. Some had tight feathering, some didn't and the colors and patterns varied wildly so I decided to do some research.
What I found, and this may have already been discussed, is the Ameracaunas and Araucanas are both recognized breeds by the APA, have a standard and lay only blue eggs. If they lay any other colored egg but blue, then they are not Ameracaunas or Araucanas. They are the mutts (mixed breeds) of the chicken world and were given the distinction of EE (Easter Egger). The sad part is that the hatcheries and breeders mislead people into spending more money for a 'breed' that isn't recognized by the APA because they are actually a mix of many different breeds.