I've got rabbits, chipmunks, and squirrels, and they do some major damage. My crocus Lilac Beauty has started to naturalize, which I'm thrilled about. The critters clearly didn't get all of these bulbs.
I've lost too many bulbs to count, including Tulip bakeri Lilac Wonder, that was planted with pink muscari, that I was so looking forward to these plants blooming together. Oh well
Over the years, I've started planting mini daffs around the susceptible bulbs, and this seems to have decreased the losses, especially with my lilies and tulips, that I used to find partially eaten, and tossed all over the garden.