Good post. I remember that movie or one that was similar about the wolves and the whole thing that they taking down all the large animals when in fact most of their diet was small rodents.
I suppose it would upset quite a few people, but it makes sense. I always wondered why I should feed my cats beef or venison or even lamb when that's not something they'd normally prey on. Actually they don't even really like those meats. They all prefer fish or chicken. Right now we're not really doing a raw diet for them, although the kitten I just found a few weeks ago made herself right at home with my dog's raw bones.
I suppose too, if you were to raise your own mice then you could ensure that they were disease free, same with rabbits although that may be a bit more of a challenge if you lived in the city with nosy neighbours!