They were listed as Americana at Tractor supply. What makes you say Easter Egger? Is there a characteristic to tell?
Unfortunately, many people and stores sell birds that are labeled as Ameraucana when they are actually Easter eggers. EEs are not a pure breed in themselves, but they lay colored eggs like Ameraucana. From my understanding, pure Ameraucana are rare. Ameraucana always come in solid or almost solid colors.
References: https://www.feathersite.com/Poultry/CGA/Arau/BRKAmer.html and https://www.fresheggsdaily.blog/2013/12/ameraucana-vs-araucana-vs-easter-egger.html