I have some hatchery silkie bantams. Two of them are 4 weeks old and their combs are very different. is it anything to do with the sex? I was taking pictures to ask if they looked more male or female at this point when I found the bumps on the comb The flat combed one is a buff. It’s the largest of these two and larger then my 5week old. It’s comb looks like the 5 week old. The one with a bumpy comb is a red silkie and very small. Any ideas??