Your hen is probably an Olive Egger, the offspring of blue egg layer and a dark brown layer (one of my favorite crosses!). There is an Olive Egger thread here somewhere...Good luck!I have one hen that is an off spring of an Amauracana that lays an olive egg. Her mother laid the aqua green eggs. I'm wondering how that happened. She came from an aqua egg.
I do not think that is correct. Ameraucanas should lay a blue egg. Anything else is an EE, or could be an Olive Egger, which is made by crossing a blue egg layer and a dark brown layer. EE's are any non-standard Ameraucana, even if it came from a purebred Am line, if it doesn't meet the APA standard for one of the Ameraucana varieties, it's an EE.Aracaunas (rumpless)= blue eggs, ameracaunas= olive, pink, EEs= mix of both so if hatchery somewhere along the line your americauna may have some of the other in her even though she came out of blue egg.