There are numerous threads on the subject, but Araucanas are extremely rare and are usually rumpless. No hatchery that I know of has Araucanas. hinkjc here breeds them, though.
Ameraucanas are a different breed with a certain standard. Easter Eggers are sometimes bred from those or some bird that carries the blue egg gene, they have no certain standard and can lay any color egg, but usually, they lay greenish eggs and most of the time have muffs and beards like Amerauanas. Ameraucanas lay eggs only in the blue family, though some color lines are still a work in progress. So, really, think of them as three different breeds. Hatcheries confuse the issue and refuse to change.
Anyway, we don't want to really get off on that tangent here on our new member's thread. Getting 200 chicks at once is certainly quite an undertaking! That picture looks like a chick stampede!