birds, raccoons, dog, or some kind of critter?

We had something eat all of our apples last year or the year before and it was raccoons. We figured it out when our dog treed one and was barking at it. We went out and shot it, grabbed a shovel to pick it up, and my husband looked up to find its sibling in the tree about 2 feet from his face. We had to get the .22 again, shoot the 2nd one, check the whole tree, and haul them off. Some of their relatives may be back.