They all sound large at night, but it is likely that the noise is made by a small animal.

Try to scare them off if you think they are into your food, otherwise go back to sleep.

You can limit these situations by camp site selection. Sites that are impacted might have habituated animals. Camp away from the water and away from what appears to be game trails.

On night at about sunset I pitched my poncho in the only flat place I could find about 100 yards from a steam. It was an overcast and moonless night. During the night a herd of elk walked by and around my poncho on the way to the water. They break limbs and make noise, but I did not want to startle them and risk being trampled. The next morning there were many tracks, but they did maintain their distance.

Predators are stealty. The animals you can NOT hear are the ones to be worried about.

Scavenger and prey animals are the ones that make noise. If you can hear them then it means there are no predators around.