Saw this big fellow hanging out in front of an empty cabin, but since it was pouring rain my only option was to stay in the truck and shoot through the driver side window. He stayed put while I got the truck in the right position about 50 yds. away and changed lenses to the 70-300mm (f/4.5-5.6G ED IF AF-S VR).
There were some elk cows with him, and this is how they "smell" if a cow is ready to breed, also known as the "Flehmen Response". With all those teeth showing it looks like he's saying "Ahhhh"..
Mike