Just got back from moose hunting

Saw four, one bull, but not legal size. I did however get a grouse. It flew out from under a log about 4 foot in front of my 4 wheeler, and landed about 20yds away. .22 pistol, one shot, POW

I went up and got it, and cleaned it, put it in the cooler. When I was filleting it to cook the breast, I found a hard lump wrapped in feathers against the breast bone. I thought, "cool, my bullet didn't exit" I pulled all the feathers off of it, and it was a .22 caliber air gun pellet!! I know it wasn't my .22 bullet. I statrted thinking, what are the odds of shooting a grouse 2 miles from the road, that has already been shot. It fried up good anyhow