The rut takes place in the heart of summer. The roe buck, whose territory includes that of several female deer, actively walks its fief and marks shrubs or young trees by rubbing against it.
When he meets a receptive female, he begins with her a circular ballet that ends, usually, by a coupling.
Gestation is done in two stages, the embryo does not implant in the uterus until 4 months after fertilization! The young are born in May or June.
In autumn, males form small groups. They moult in October, their coat turning from red to gray brown, lose their antlers in November and wear their velvet until February.
During the winter, mixed groups are formed, more or less important, often visible in the stubble or plowed fields.
From February, the males begin to mark their territory. These markings will intensify with the approach of the rut, and the brocades stays alone until the summer. Females give birth at the end of April, or beginning of May; usually two fawn weighing 1 to 2 kg (around 2 to 4 pounds) each. The fawns, which would be very quickly able to move, remain hidden in the vegetation. The mother spends little time with them, only joining them for feeding. She cleans them carefully, going as far as to consume the droppings ,all these steps to escape predators !
By the third week, the fawns will follow the mother and will not leave her until 10 to 11 months later.