This bull elk is facing a few challenges throughout the winter, main ones deal with the winter season, the cold temperatures and the amount of fallen snow.  Using more energy  if it's colder and more energy to get at the low quality food through the fallen snow. This bull like other elk may lose 20 to 25 percent of their weight over a winter and if he loses more than 30 percent, very likely he  will not survive  the winter. The winter might take it or if it's so weak,  predators the  likes of  wolves or cougars will take it. It helps when the days start getting longer, it means shorter cold nights to deal with. Using the dense forest as cover, it can be few degrees warmer in the forest and protection from the wind. It may not make a difference for one day, but over a whole winter, every bit adds up. For wildlife it's the survival of the fittest, literally.

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