Olive eggers are a mixed breed bird that lays "Olive" green eggs. Ours come in two types, F1's and F2's. Our F1's are first generation Olive Egger chicks. They will lay lighter green eggs. Their parents are an Ameraucana hen and a Marans rooster. Our F2's are second generation chicks and will lay a dark green egg. Their parents are an Olive egger hen and a Marans rooster. Olive eggers we find, are pretty docile and great foragers. Our birds usually grow up to be either black with copper spots or blue/gray. They are a fabulous addition to any egg basket.