I use them in game marinades and it's darned good. There's two, maybe 3 species around here. Alligator juniper berries aren't much for flavor, but the one seeds or utahs are. Get them when they are good and ripe. Taste them when you collect them. The stronger the better. I use them fresh. Just crush them in with some worchestershire, fresh garlic, crushed rosemary or sage, and pepper. It may not sound good to some of you fellows, but try it. You might like it.
I've also used crushed pinyon nuts, fresh sage, garlic, and worchesterchire to make a breading for game steaks. My wife loves that one, but it takes forever to get enough shelled pinyons. Store bought pine nuts work too. Cook it hot and fast like all game steaks should be cooked.
I like using local stuff like wild Louisiana sage, wild basil, water cress, elderberries, strawberries, choke cherries, etc. One of these days I'm going to get around to roasting maguey or agave like the Apaches did down here.
Sean