I suggest you refer to
this article.
"
Responding to a general “Araucana fever”, due to their promotions for “Easter Egg” chickens, and false and wildly exaggerated claims about the extra healthfulness of Araucana eggs, commercial hatcheries expanded a frantic effort to outcross blue egg laying “Araucanas” with everything else, and sell them as “Araucanas”, when they were nothing more than mongrels (which sales are still continuing today). However, there were a number of dedicated breeders who attempted to keep what they each viewed as the “original Araucana” from becoming extinct, and various groups formed, but each had their own idea of what a “Standard Araucana” should be.
Among them were bearded muffed tailed types, but these were far from being standardized. Prior to 1976, there were breeders specializing and developing BOTH the tufted rumpless type of “Araucana” and the bearded muffed and tailed type (and everything in between), but efforts were made by a few dedicated breeders to standardize their own preferred varieties of “Araucanas”, and each sought adoption of their OWN version of a Standard for an “Araucana” breed. This proved to be VERY contentious, and set the stage for much misunderstanding and ill- feelings, which unfortunately is continuing today in some areas.
Leading up to that recent period, bearded muffed and tailed blue egg layers were being advertised in the Poultry Press some thirty-eight years ago, as “Araucanas”, and being shown and awarded as “Araucanas”. Ameraucana Bantam Club (ABC) Charter Member Harry Cook, of New Jersey, had been working with what later came to be “Ameraucanas: since prior to 1960, and Harry generated letters between the ABC and Clarence Begler who bred bearded and muffed “Araucanas” even prior to that, more than 44 years ago. Mike Gilbert also had written, “Back when I was experimenting with various Araucana stocks, birds were produced with BOTH tufts and muffs, but the lethal factor associated with the ear tufts resulted in their selective elimination...” Regardless of other characteristics, the Araucana and the Ameraucana are BOTH distinguished from other poultry by being layers of BLUE EGGS, unique among chickens, and sought after primarily for that reason."
Essentially Easter Eggers have been maintained by hatcheries since the 1970s-1980s. They're not simply crossing other breeds in. These are Easter Egger x Easter Egger crosses for generations. Ameraucanas were standardized from similar birds but they're not the origin. The origin are South American imported breeds. The OP's bird is an Easter Egger through and through with countless generations of that cross over and over.
