Squirrels will dig up bulbs and move them to other hording spots. Sometimes they will deliver new plants to your existing pots. Skunks dig for grubs and make similar holes. Bunnies could be the culprit, or even a large bird could be the scoundrel! I have all of these visitors and more at my place. I have motion-sensor impulse sprinklers that go off, Scary Halloween masks that sing and their eyes light-up red and for the fun of it, I have a DVR motion-sensor recorder. This way one can watch the rascals as they demolish potted plants, garden greens and just-ready-to-eat fruits. You'd be amazed at the visitors that stop by while we sleep. The little DVR recorder was only 70 bucks. Well worth the fun.
