Yep, all three. The only hatchery that sells true Ameraucana is Meyer, and they only have Blue/Black/Splash. The only other source for true Ameraucana is from breeders, breeding to the breed standard. True Ameraucana are always sold specifying color. If a bird is sold as Ameraucana, without a specific color mentioned, then it's an Easter Egger.
Your girls also have greenish legs, which indicates yellow skin. It's a very common Easter Egger trait. True Ameraucana have white skin, and it's dominant.
Thank you so much! We are newbies to raising chickens, we have a total of 12. two black orpington. two white star, 5 red star. Two of the Hawk looking easter eggers and the brown Easter egger w/ gray face. We have just begun to receive small brown/ light tan eggs. Not sure who they are coming from!
Pullet eggs start small and gradually get bigger. It can take a few weeks or even months for eggs to get up to 'normal' size. They will also get bigger after each annual molt.