Animals have different behaviours depending on what their current needs are and whether or not they have been alerted. Over the course of the day, they will seek out need zones for resting, eating and drinking. They will revisit need zones daily, unless there is hunting pressure in the area. If an animal starts to notice your presence, they will become alerted but not scare immediately. Only when they sense that you are near enough to pose a threat, they will start to run away. Fleeing animals will run until they feel safe and then return to their normal behaviour. They will, however, remain vigilant with heightened senses for a short period after having calmed down.
The current state of the animal behaviour can be spotted with the skill Sight Spotting .