We recently had an attack by a stone marten (like a pine marten) that killed a huge amount of our chickens. I'm now worried about our quails, who live nearby. They have a lovely, solid, wooden hut to go into at night but seem to love sleeping outdoors in their pen. Stone Martens will be able to get through basically any sort of pen wire - they chew and pull wire apart and dig way down underneath - so I feel like getting the quail into their house at night is pretty imperative. Any ideas how? They're coturnix.