Tell him there will be other spouses her who are interested in varying degrees. We have lots of acres. Does he hike or "nature walk"? There will be plenty of people to chat with. If he is a people watcher bring a chair and chat away. Or leave him home and have a chickies day on your own or bring a friend instead. See...where there is a will there is a way!
My DH is not a chicken enthusiast either but he has a good time coming to chickenstocks.