They train much like American Crows. Those from Cackle likely have something else bred in to calm them and promote egg production. Mine would come when called and fly to hand for a reward. I work with my birds a lot with many as tame you have likely ever seen. Several are used to teach public and the birds run loose in strange places when doing their jobs.So, this is going to come across as maybe a snotty comment.... which I don't mean, but I am genuinely curious... I haven't ever raised junglefowl, but I know a couple of people who have raised them. Their behavior to me seemed very pheasant-like if I had to characterize their behavior. Prone to pacing fences, maybe once in a blue moon you get one that is tame, but otherwise a breed that tends to be (at least the behaviors I have observed) very stand-offish, somewhat poor (and highly seasonal) layers.
Have you had a different experience with this breed? I'm really interested - I've toyed with the notion more than once of raising them, mainly because pheasants appeal to me. I'd be very, very interested to know if you got birds from Cackle or elseware, if you have.