The only time I have had an issue with mice is when I had food under the tarp rather than hung in a tree.
All my food was in a bag up in a tree, they managed to climb down the para cord rope and got into our food bag as well. They left no stone unturned…I heard them nibble on my bow, my backpack, and they even tried to climb in my sleeping bag with me.
For the weight penalty of 6 oz a bivy is good insurance. My brother who slept nearby in a standard freestanding tent had no issues.
Sent from my iPhone using Tapatalk