Is this a normal eye color for an olive egger?

[Star428]

I've noticed her eyes have a very different look to them than my other chickens... is this normal for her breed? (And yes she was born with a visible nictating membrane)

 

[MountainWoman73]

Black copper marans have eyes that color, and her coloring looks like one. Half black copper marans and half blue egger is a popular mix for olive eggers. So I think that's what you've got. Lucky you!