But if this is your plan, then I'd say it has a lot of potential, so keep working on it! Of course, @Florida Bullfrog can help you way more, but I'd love to hear the progress of this project
If you mean that game fowl are kept by keepers in colder climates then yes, but they are kept sheltered. Not necessarily saying game fowl are not good candidates for free ranging, nor am I saying your experiment won't work, but there is a heightened risk factor with your plan
You are talking about gamefowl and the red jungle fowl here, the real deal. In addition, Mediterranean breeds for such a cold climate might be risky, especially since you want to free range them