Hello everyone! I have a small flock of Birchen Marans. All of my flock is black Birchen apart from one blue Birchen rooster. I have hatched out a few chicks and all of them have been black. Is it possible to get blue from this flock or would I need blue Birchen hens as well? Also, I have one hen that is pure black, could she produce chicks that are Birchen? She’s the sister of hens that display Birchen, so maybe she carries the Birchen allele? Here are a few pictures of my flock. I do have a black Birchen rooster as well, so that might contribute to only black Birchen chicks. He’s pictured below. Thanks in advance!