After you quarantine them find a way to put a barrier between them so they can still see each other but not be able to hurt them until they get to know each other after a few days they usually accept them in to the flock because there use to seeing them through the barrier a decent size cage...
Thanks and I know I tried so hard to find them grown but had no luck just for 6 eggs on ebay there $80 and your not even guaranteed they'll hatch because they are known for low fertility which is one of the reasons they are going extinct but so far I have had 100% on fertility with my eggs
11 I believe it was I also purchased eggs and hatched them from another breeder I believe it was breeze farms I had 22 chickens in all but lost some wanted two blood lines to make sure there was know inbreeding
This is what they look like fooly feathered pic us from greenfire farms where I had purchased them from when they where chicks they are purebred spent $100 a piece on them per chick