A prospective client with whom I have been talking about using straw bales to construct a little cabin to cut costs, asked me if she could use haybales instead. She owns a farm and can make haybales herself. I didn’t think it is a good idea because haybales could attract mice and other rodents into the wall. I did a little research this morning to verify my opinion and found this article, which I would like to share here:Â The Difference Between Hay Bales and Straw Bales.