Something is eating my snapdragons, how do i stop it?

This spring i planted some dwarf snapdragons, for a few months they were fine. But now i noticed that something is eating them not bugs, but an animal... Does anyone know what animal could be doing this(happens at night) and how can i get it to stop? I live by a creek so it could be a number of animals, I never see and footprints so i'm guessing a small animal, if anyone has any suggestions or had the same problem, your advice would be great.

Something is eating my snapdragons, how do i stop it?
Well first I would assume it's some kind of mammal. The good thing about mammals is that they have taste buds so you can use a variety of products that make foliage unpalatable, such as pepper sprays. These are available at any nursery and they do not hurt the plants. If that doesn't work then you can assume the culprit is insects or slugs and use other products that you're already familiar with.
Reply:How do you know it's an animal and not bugs? Beetles, specially weevils (such as adult vine weevils) leave what look just like 'tooth marks', also birds can have a nibble here and there too, though that's mainly at nesting time and tends to be brassica family (cabbages, Cauliflower etc). The weevils wi attack at night and you may well find them in the soil directly below the plants. Birds obviously will wait til sunrise. Almost impossible to guess without a photo or further info tho.

skates