I agree. I just hatched some eggs for the first time last month and had no trouble telling the one with the pea comb. I am sad they're not really marans, but plan to keep them as layers. They're sweet birds, docile and friendly.They don't strike me as Marans, so I would guess they really did send you Olive Eggers.... they just didn't get the pea comb in the cross. I would just use them for layers. They may very well lay you a dark egg or even an Olive (doubtful) I sell my straight combs as just layers. But if you didn't get ANY with pea combs..... I would think they duped you. You can see the pea comb vs straight comb at hatch. I would never sell a straight comb as an olive egger.