The deer's origin began in the plains and the cultivation of these lands forced their migration into the forests.

Originally, their antlers were used for recognition purposes in the plains environment and soon became a hindrance in the tight, constricted space of the deep woods.
 

Deers and herds usually live in the underwoods of the leafy trees (source of their food). They come out in edge at the time of the rut to join their " bellow area ". It's an usual area, they will go back there every year. The males can then cover very long distance to return there, we can then see them crossing clearings, rivers and roads ...