So I guess they would be classified as EE's, not the coloring I usually see on here. But the Dad was probably a Black Orpington and they hatched from blue eggs (maybe a splash Ameraucana?) When is the best age to check for gender on these birds? I know our Orpingtons were always hard for me to tell on and so are EE's from what I hear. Here is a few pics of the 2 that hatched this color.
Bird #1 (5 pics)
Bird #2 - (3 pics)
Bird #1 (5 pics)
Bird #2 - (3 pics)