So I love my colored eggs, and was sooo excited to try Marans and Welsummers. Both gave me beautiful eggs, but the Marans just didn't lay very many of them, and while the Welsummers layed more, I really like the color of the blue Marans. Sooooo, I decided to cross them to see if I could increase production while still keeping a nice darkish, brown egg. I got 3 pullets; 2 blue copper and a black copper. 2 gorgeous blue copper cockerels. One of the pullets surprised me by starting to lay last fall at 5 months of age, and she kept laying for a month or two. Not sure I have pics of the eggs,but they were a medium size and nice brown color. I know lots of people are very much against crossing breeds, but I enjoy experimenting.I'm sharing my experience because, when I tried to find info on this cross, I didn't find much. Hopefully this thread will help out someone else who may have the same urge to experiment as I did. This spring I plan to cross my Marans with a Rock or Sexlink, take that offspring, and breed it back to my Welarans. My ideal is to get a good dark laying chicken. Blue copper pullet in front of Olive Egger, and next to Splash Marans. Blue Copper girl who layed early last fall. One of my two gorgoeus cockerels. My 2 blue copper pullets My one black copper pullet. Will be interesting to see if her eggs are any darker than her blue sisters.