Are fieldvoles present in your locale? They are charming little blighters but are a proverbial pain. While I enjoy their company (!), it would be better if they ate all the plant rather than a nip here and chunk there.
My first frustration with them was in a production house growing- on bedding plants and they travel across a block of crop, ‘felling’ 1 or 2 per tray as if beavers in a forest, just to create a passage.