Wildebeest bulls are very territorial and defend their territories with pride, when other bulls challenge the territorial bull, both will drop to their knees and start pushing each other. Breeding heards are usually followed by the territorial bull. Cows reach sexual maturity at two years of age, calves are light in colour that contrasts with the darker colour of the mature wildebeest. Blue wildebeest graze on short grass because it can handle heavy seasonal utilization. Bergsig Game Farm has Blue wildebeest and Golden wildebeest as part of its larger antelope.