The blackbuck is a diurnal antelope (active mainly during the day). Three kinds of groups, typically small, are the female, male and bachelor herds. Males often adopt lekking as a strategy to garner females for mating. While other males are not allowed into these territories, females often visit these places to forage. The male can thus attempt mating with her. Herbivores, blackbuck graze on low grasses, occasionally browsing as well. Females become sexually mature at eight months, but mate no earlier than two years. Males mature later, at one-and-a-half years. Mating takes place throughout the year. Gestation is typically six months long, after which a single calf is born. The lifespan is typically 10 to 15 years.