They will savagely fight any intruding male. Such chases also occur in other seasons, sometimes between individuals of the same sex. The roe deer utters a barking sound when disturbed. Females emit a screeching sound during the breeding season and to call fawns. Mating usually occurs in July and August, and implantation of the fertilized egg in the uterus is subsequently delayed about 4 months.
Births occur in the spring.
When about to bear its young, the doe chases away the offspring of the previous season and then retires to the forest, returning in about 10 days with the new family. The number of young per birth is usually two, occasionally one or three. Twins are born and suckled, not at the same spot, but usually 10-20 meters apart. The fawns have three longitudinal rows of white spots. Sexual maturity is attained at about 1 year and 4 months.