As the title says really. I have a pair of magpie call ducks, they have a large duck house with straw and just normal shavings in for bedding. Then attached to it is a large outdoor run and I was hoping to put these soft wood chips in there. However somebody told me that wood chips cause blisters on ducks feet. So just wondering if any of you keep your ducks on wood chip or if there's anything else I could use instead? Thanks in advance.