I am needing help again on my chicks now that they are older. They are right around 13 weeks old. I have 5 chicks, 2 are cochin mix and 3 are new hampshire (2 of which I am postitive are roos) Here is the one I worry about the most. as a young chick the comb used to be all black and has now turned reddish. Here is the other chick The roo is the in background, both roos look the same, but what about this one? These 3 are full siblings.