There was a guy at my husband work place had some black silkies, 2 roosters & 2 hens. He did not want them for some reason, I don't know why because he raises chickens himself, so we took them. But, I was wondering how well will my 8 leghorns, 5 barred rock, and 4 red sex-links will get along with the silkies? They seem kind of scared of the black silkies except for 2 of my barred rock and 1 of red sex-links, they attack the black silkies. Or do I need to keep them separate?