Hatchery Easter Eggers started out from the same stock that the Araucana and Ameraucana were developed from. While private breeders worked to refine their stock to a specific standard, hatcheries have done no such thing. Their only goal is colored eggs. They routinely cross in higher producing...
Easter Eggers potentially have genes for just about any color egg. Olive Eggers potentially have the right genes for dark, olive green eggs in particular. Olive Eggers are a more specific cross than typical Easter Eggers. The mix usually involves a dark brown laying breed, like Welsummer...