There is a linkage to pea comb but it is not ironclad.The blue egg gene can go with any comb but likes peacomb.The Easter Eggers that we kept have single combs so far - some of the ones that our friends got have pea/rose combs. Do you know if that means that we won't get blue eggs?
Hens go broody when you don’t want them to… and won’t go broody when you do.
Hope I can still join. 
