As the deer enthusiast's knowledge of deer behavior increases, their chance of being in an area at the proper time to encounter a deer increases. Outings by sportsmen then become more productive and more satisfying when deer activity is observed and to some degree is understood. Communication Deer are social creatures and, much like man, have a definite social structure. With this social structure comes a complex set of rules with which every deer in the herd must comply. These rules within the deer herd demand a method of communication whereby deer can react and respond to each other, establish herd hierarchy, or pecking order, and mutually warn each other of potential danger.
Deer understand the difference between dominance and leadership.
For example, a mature doe may be in a subordinate role to a specific buck, but clearly be the leader of the deer herd. The deer, like most of the animal world, reacts, cooperates, and communicates with other members to increase chances for survival. These cues are utilized individually, or in some cases in combination, to reinforce a particular response. The deer assumes what is called a stereotypic alert posture. This posture includes the cocking forward of both ears and erection of the hair, particularly along the back.