Hello, and welcome to the BYC community!
The spelling of the breed is extremely important, because
ameraucana is the actually purebred, whereas a
mericana is a marketing tactic for Easter Egger hybrids or mixes.
To me they do look like ameraucanas, however I can’t tell for sure because I didn’t buy them or see the label at the store.
Ameraucanas (and typically Easter Eggers too) lay blue eggs. They will have muffs (fluffy cheeks) even when they grow up. Their necks will appear thicker because of the feathers. Ameraucanas have pea combs, and they (the combs) usually stay pretty small. The breed is very beautiful!
My profile pic is my ameraucana, but here’s a couple full pictures of her…
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