Mysterious dead chick.
I am a bit skeptical that they are true ameraucana's, but they specifically stated that they were. I'm not really concerned with that as they are simply to be beloved pets that will grace us with their lovely eggs. I will definitely be anticipating their feathers coming in to tell for sure tho. I know most of them have that "chipmunk" appearance right now, so not sure if that means any thing one way or another. If I ever have children that want to do 4H, I will hunt down breeders to ensure I get quality heritage. As of right now, I am just wanting happy, healthy girls and feel like I'm not off to a great start.
I have both wheaten ameraucanas and had lavenders also, but also have EE's from a hatchery. The EE's lay the best, their eggs hatch better, and they also are better at foraging. Ameraucanas were created from the true rumpless auracanas from South America. When I first got chickens, I wanted them so bad, but have found that having different breeds and colors is more fun. My EE's have laid pretty blue green and sometimes blue eggs.The RIR's that hatcheries and feedstores sell, are usually production reds, with only some RIR bloodlines. I'm like you, I just want healthy chickens. Many people will want a specific exotic breed, and then unknowingly bring in diseases from unscrupulous people who sell unhealthy birds. I am sticking to hatchery chicks or hatching from my own in the future. There are several good threads on here for Ameraucanas and other breeds, where you can learn some names of ethical breeders. I found some heritage RIR breeders here that helped me get one of the original lines over a hundred years old. They are very different from hatchery RIRs. Sometimes they will sell and ship hatching eggs. That is a good way to find breeders by getting to know them from their reputations on BYC.