Do you have images of your rooster? I think I have an Orpington Maran Cross also. Just 4.5 weeks old, but over a pound and dominating the other chicks. Both comb and waddle turning red.
I think this chick is a black sex link female. She is now two weeks old and this image was 8 days ago. She is already developing stripes breast feathers. She also has a sibling that is black. He appears to be male by vent check. But both are sweet. I think they are black sex link chicks. The...
39 hours apart in age and male chick attacks female chick. Tries to peck neck and underside. We separated them. Tried to reintroduce with same thing. New to this. First two we hatched. Younger chick is now growing larger. So we looked at output so to speak. Younger chick eats and poops and...