I had a large wood pile that was dry last year and covered with a tarp throughout this year. When I uncovered it to restack on my porch for burning this winter, I found two large mouse nests on top with several adult mice crowded together - all dead. Just curious if this is common, and others have seen it. I wonder what did them in... cold, heat, lack of oxygen? It looked like another animal was camping out in there as well - maybe a weasel - but it had long departed.