Hunting elk on crusted snow in late winter/early springmight, have been important when surplus was running low. The data we have about such hunt is to my knowledge a Stone Age panel from Vyg in Russia, a description from subarctic Canada in the 1770s, and a story from Sweden in 1848. In addition, there is as well another Stone Age panel that I find relevant, this one from Kanozero in Russia, showing a bear hunt.