I have a silkie chick that is about month old. It has a single comb growing in. It is not like our other silkie hens from Ideal that have walnut combs. This one is straight and has little spikes like my Speckled Sussex had when he was young. Does that mean this silkie chick maybe cross bred with something else - or is it just a bad fault in the breeding line? It is a cuckoo colored chick.