Tweety-WOW! Very nice job on the duck pond and all the pens. Those ducks have GROWN! It's hard to believe those are the same ones you posted the pics of when you got them.
Cherwill-It's really hard to say for sure about your ameraucana/easter eggers. Without a good picture I wouldn't want to say for sure. However, I can assure you if they came from hatchery stock that they are technically easter eggers. I don't know of a single hatchery that sells pure ameraucanas. Also, if their feather coloring does not match the description in the APA standard then they are easter eggers.
I have pure ameraucanas from reputable breeders, however, when I mix some with my marans in one of my next breeding projects the result will technically be easter eggers, or more specific, olive eggers.
I really don't think it's all that big of a deal except it's too bad hatcheries sell mix breeds as "ameraucanas" simply because they lay a colored egg. It's very misleading to people who then swear they have ameraucanas. After all, the hatcheries ought to know what they sell, right? I've seen some folks get very defensive about the issue.
It's a matter of what you want, and if you are not trying to show them or sell them as purebred ameraucanas then it probably doesn't matter that much anyway.