My girls have started laying. I want to build a nest box or two for them to lay in, but I can't think of a good nesting material. Here are my ideas and things I have heard about: 1. Straw. (I don't have much access to this) 2. Hay. (Can be harmful to chickens if they ingest, and is hard to manage as it easily absorbs water and rots, and can house parasites) 3. Pine Shavings. (I can get this, but my duck, Lizzie, eats it and I'm not sure it's OK for her to eat lots of wood shavings) 4. Sand. (I thought of using sand, as the duck doesn't eat it, and it's a natural dust bath material! But I'm not sure if they would take dust baths in it instead of laying eggs in there) Any more ideas? Opinions? Thanks!