Keep the fire small. Wildlife have their own daily patterns and are instinctively afraid of humans. Our presence disrupts their patterns and may affect their health. Before contact with humans wildlife are fully capable of foraging their own food and fending for themselves. When wildlife see humans as a source of food they lose their fear of humans and become habituated.
Habituated predators become problem animals and are often shot, or at best relocated.
Leave the wildness in wildlife and don't contribute to habituation through poor wilderness practices. Chose your site carefully so it is comfortable without alterations. When you must remove a rock, replace it as soon as possible to avoid altering the microecosystem surrounding that rock. Good campsites are found not made. Avoid damaging live trees and plants.