Ok new question though I am afraid I know the answer. We are new to Marans, we are building several flocks. Silver or Black Birchen, Blue Birchen, Wheaten, Blue Wheaten, and Splash. We actually got the splash first and have the most of those. Silver Birchens have just been laying a short while. The latest hen to start laying is laying the most round egg and it is the darkest. The other two hens are laying larger less round and much lighter eggs, no where near the six required for Marans. The splash lay the darkest eggs and they are rounded. For the Birchen that are laying the large oval shaped, like other eggs, color 5 or less, do we continue to breed them? What if they are the only hens showing silver in the hackles? If their type and color is good and we continue to breed them can the egg color of their chicks improve much? So far we only have purchased roos so we do not know the egg color of the roosters. I know these are questions only we can answer but wonder what others would do. Thanks, Mike