Males become sexually mature at the age of three to four years, while females can conceive at just one year of age, reproducing every nine to fourteen months. Though there is no fixed breeding season, mating peaks in the rainy season. Fights for dominance take place in some particular "assembly fields", where up to 40 males may assemble in an area of . Some parts of these grounds are the main attractions - marked with dung and urine. The reason behind the attractiveness of these few spots for sexually active males is the oestrogen in the females' urine.