Yes. I would recommend storing your Hummingbird Cake in the refrigerator, as it will last longer this way. Because it is a very moist cake, you don't have to worry about it drying out in the refrigerator, especially if you keep it tightly covered with plastic wrap or a cake dome. Chilled cakes are easier to slice, so cut as many pieces as you will need straight from the fridge and then (if desired) bring them to room temperature before serving.