I am working on my lavender pen and while reading through some of these posts it is mentioned to breed back to a PURE black orpington for type. Where do ya'll find pure black ones? Many I have seen are from BBS orp pens. I don't want any hidden genes to deal with and I suppose that is why pure is recommended but where to find them? Thanks.
A Black from a BBS mating would be "pure" Black. If it had a blue gene, it would be Blue or splash. Just make certain its type is good. No use breeding to a poor type black.