I have 5 welsummer chicks about 4 1/2 weeks old. THere are two that have large combs, dark breast feathers and act like roos. Two have small combs, act like hens and have light coloured breast feathers. THis one has a large comb, acts like a rooster but it has chestnut coloured breast feathers...? Do they do that some times? Is is a fault in the colouring? Will he still feather in like the others? I really do think it is a roo... here he is looking very suspiciously at my phone! Another one of him Here is one of the other roos So tell me what you think folks!