An easter egger is a chicken who has the blue egg gene. Usually one of their parents is a real ameraucana, or you can get one from two full blooded ameraucanas, but it's color is just off. Yours does look like an easter egger though, and many have greenish legs and a similar color pattern. There are many threads on here to check out and educate yourself on ameraucanas and EE's. She can lay green, blue, or any color egg since she is mixed.