Bull elk (shown in previous photo) standing away from the herd. He appears to be pouting or thinking about whether it's worth going back and getting into an altercation with the other bull. Both bulls seem equal in size, but this bull's "bugle" wasn't quite as loud as that of the other bull.
Bull elk with female in background. There is another bull elk (not visible on this photo), and this bull doesn't seem to want to fight him, so he is walking away.