The only real experience I have with Olive Eggers is putting a Penedesenca rooster over a green egg laying Ameraucana hen. Her daughters laid some pretty nice olive eggs. I never tried to keep that line going nor did I keep any of the cockerels from that pairing. I didn't know places like TSC sold actual olive eggers.I bought them from TSC a year ago so I don’t know. I was mostly concerned about the egg color of the hen. But I understand the offspring egg color will be determined by the rooster as well.
I will not be keeping the offspring so I won’t know the final color. But at least now I feel confident that even if the eggs are coming out lighter right now, that the olive color gene is there with the hens that have laid olive eggs in the past.
This year will be my last with Olive Eggers.