Easter Eggers are mutts, commonly sold under false claims of an Araucana or Ameraucana. They usually but not always have some form of brown coloration, green legs, and lay green eggs (but they vary a lot, and can even lay blue or brown eggs)
Ameraucanas (no I in the name) are a purebred breed, not sold at feedstores or hatcheries though despite what they say. They come in recognized colors, have blue legs, and lay blue eggs.
Araucanas are a really rare breed, having no tail and no "puffy cheeks" but instead tufts of curling feathers coming from just near the earlobes. They lay blue eggs.
There's several articles on BYC about this, here's a well known one. Personally I think the first post is a tad confusing to read, but if you skim through the thread you'll get a good idea of the difference, visually. Although Easter Eggers vary, they have their more commonly found colors. Ameraucanas can look like Easter Eggers but don't have the same colors; their colors breed true. Araucanas are completely different in that they don't have a beard and don't have a tail.
If anyone is selling you a chicken with blue/green/pink eggs, there's a high chance it is an Easter Egger. A low chance it is a true Ameraucana, and an even lower chance it is an Araucana. If the seller is, say, from BYC - There's a good chance they're not lying. If the seller, though, is a hatchery, feedstore, or someone on Craigslist who spelled the name wrong - Chances are they're selling you Easter Eggers no matter the claim.
Ameraucanas (no I in the name) are a purebred breed, not sold at feedstores or hatcheries though despite what they say. They come in recognized colors, have blue legs, and lay blue eggs.
Araucanas are a really rare breed, having no tail and no "puffy cheeks" but instead tufts of curling feathers coming from just near the earlobes. They lay blue eggs.
There's several articles on BYC about this, here's a well known one. Personally I think the first post is a tad confusing to read, but if you skim through the thread you'll get a good idea of the difference, visually. Although Easter Eggers vary, they have their more commonly found colors. Ameraucanas can look like Easter Eggers but don't have the same colors; their colors breed true. Araucanas are completely different in that they don't have a beard and don't have a tail.
If anyone is selling you a chicken with blue/green/pink eggs, there's a high chance it is an Easter Egger. A low chance it is a true Ameraucana, and an even lower chance it is an Araucana. If the seller is, say, from BYC - There's a good chance they're not lying. If the seller, though, is a hatchery, feedstore, or someone on Craigslist who spelled the name wrong - Chances are they're selling you Easter Eggers no matter the claim.