Wow! I have read a good portion of this 122 page thread...very informative. And then I get a swimming effect going on in my head with all the knowledge! I have 2 CCL roosters (well cockerels, really). When they reach maturity, if I cross them with my hens (BBS Marans, BBS Ameraucana, Buff Orpington, Jubilee Orpington, Barnevelder, Welsummer, Gold-laced Wyandotte, BBS Isbar) could any of them be sex-linked? Auto-sexing? I believe, if I'm reading the information correctly, the Welsummer and GLW should be. I really don't even know why I'm asking. I guess I am a sucker for a science experiment.