I’ve had hives for about three years and this has never happened before. I have a dozen hives wintering on their stands (4x4 on cinder blocks, about 15” from the ground). I have found at least 4 mouse nests on top of the screened bottom board inserts when I checked before an OAV treatment. The mice are living UNDER the screen, but on top of the insert. I keep the insert in for the winter (mid Atlantic area). A mouse guard won’t help this at all. Any ideas for what to do beyond removing the insert every day to “evict” the residents?