 Primarily a grazer , the oribi prefers fresh grasses and browses occasionally . Grasses can constitute up to 90 % of the diet ; preferred varieties include Andropogon , Eulalia , Hyparrhenia , Loudetia , Pennisetum and Themeda species . Mineral licks are also visited regularly . Oribi have been observed feeding on flowers and Boletus mushrooms . Groups of oribi congregate in the rainy season , when grasses are abundant . 
 Primarily a grazer , the oribi <a href='uninflect' title='1'><mark>prefers</mark></a> fresh grasses and browses occasionally . Grasses can constitute up to 90 % of the diet ; preferred varieties include Andropogon , Eulalia , Hyparrhenia , Loudetia , Pennisetum and Themeda species . Mineral licks are also visited regularly . Oribi <a href='been_done' title='2'><mark>have</mark></a> been observed feeding on flowers and Boletus mushrooms . Groups of oribi congregate in the rainy season , when grasses <a href='drop_aux' title='3'><mark>are</mark></a>abundant . 
Primarily a grazer , da oribi prefer fresh grasses and browses occasionally . Grasses can constitute up to 90 % of the diet ; preferred varieties include Andropogon , Eulalia , Hyparrhenia , Loudetia , Pennisetum and Themeda species . Mineral licks r also visited regularly . Oribi done been observed feeding on flowers and Boletus mushrooms . Groups of oribi congregate in the rainy season , when grasses abundant .