The incubation period for quail is 17–18 days, depending on the strain. Successful hatches depend upon a good understanding of incubator controls at 19 days they are dead.
http://AmeraucanaAlliance.org/faq.html#Seven
"...even if a bird meets an Ameraucana standard breed description, but doesn’t meet a variety description or breed true at least 50% of the time it is considered an Easter Egg chicken."
http://AmeraucanaAlliance.org/faq.html#One
So, it is an...
You should ALWAYS give credit to the source you copied from. Please click on the link to read the entire FAQ & answer from the Fowl Stuff site, along with several others.
http://FowlStuff.com/FFAQ.html#seven