"Calving Season" is a piece illustrating interactions between wolves and livestock.  A big issue arose not long ago about the introduction of wolves and their impact on livestock.  Cattle in particular are easy prey for these animals and often leave ranchers devastated in financial loss due to these interactions, whether it be by harassing the livestock or killing.  It is titled "Calving Season" beacuse of the area where most of these issues arose.  Most livestock producers in the Northwest are calving while there is still snow on the ground, which make them very vulnerable to predators.  The story board is as follows in the photos.  First is the encounter of wolf vs. newborn.  The next shows the intervention of the mother in her attempts to protect her young.  Wolves travel in packs, so in the third panel you see numerous dog tracks outnumbering the mother and calf to where you no longer see their tracks.  The fourth panel only shows drag marks and a few scavangers left to feed and the end result leaves only bones to show for it.  This piece is just merely a demonstration of what an interaction could look like and result in.