I have 3 Andalusians, 8 weeks old. 2 black Australorps and 2 Orpingtons 5 weeks old. My splash Andalusian has hints of red around her comb and under her chin but my black Andalusians comb is very large in comparison to the other two but not red at all. One of my little Australorps already has hints of red. Does this mean that the two with reddening combs could be Roos? We can't have Roos where we live.