As unpopular as this may be, I would say a farm bulldog/hound or bird dog cross would be your best bet. When you break away from lines that have been bred for a specific task, you end up with a dog that is easier to mold to what you want. My family hunts wild hogs with dogs and that's what we use. I've seen people hunt squirrels, rabbits, hogs, and quail with the same dog. They won't be the best at everything, but they are adequate at it all. If you were looking for a dog that would find food for you, that would be the way to go. I would prefer a dog that could find some kind of food all of the time over one that was only able to find one type of food really well.