Bigger wildlife meaning large mammals. . .
East side:
crests and ridges for sheep and goats
valley bottoms for moose, many glacier valley is a good place;
mid to high elevation for bull elk - they are not like yellowstone elk, so do think youre going to walk up and photograph them like you would in Banff or Yellowstone
Bears are in the berry patches right now, go there to find them.

Keep an eye on the fire, right now you cant even get to the east side over the sun road, and hwy 89 is closed. Looks like the fire is going to get much larger today - high winds expected!