The Roe Deer (Capreolus capreolus) is a mammal belonging to the cervid family (deer, reindeer, moose, etc.). The adult male is called a roebuck, the adult female a roe doe, the young a fawn (before 3 months) and then a yearling (up to 1 year). It should not be confused with the stag and the hind, which are much larger and generally live in large forests (such as Fontainebleau, Rambouillet, etc.). Roe deer are primarily observed at sunrise and sunset, but they roam to feed within a small territory of a few square kilometers both day and night, interspersed with numerous short resting periods. They bark to warn of danger, when frightened, or to challenge an opponent. Only the male bears antlers, which are shed annually around October and regrow with velvet until spring. Males fight, defend their territory, and seek mates in summer. Fawns are born in spring and are very vulnerable. Therefore, it's important to avoid leaving trails in spring and to prevent dogs from roaming (ideally, for all wildlife, dogs should never be allowed to roam off-trail). Roe deer are herbivores, feeding on leaves (both green and dead), brambles, ivy, mushrooms, fruits, etc.