Here's another Scandinavian.. those "lemming years" as we called them used to be fairly common in the past, much more then than these days. They used to happen regularly every four years or so. I remember the summer of 1974 (I think it was), the roads were so slick with lemming carcasses that every early morning road maintenance crews would be out with machinery normally used for building/maintaining roads - I think the English term is "road grader". Roads were completely covered with blood and innards from lemmings. It was surreal.