 Impala browse as well as graze ; either may predominate , depending upon the availability of resources . The diet comprises monocots , dicots , forbs , fruits and acacia pods ( whenever available ) . Impala prefer places close to water sources , and resort to succulent vegetation if water is scarce . An analysis showed that the diet of impala is composed of 45 % monocots , 45 % dicots and 10 % fruits ; the proportion of grasses in the diet increases significantly ( to as high as 90 % ) after the first rains , but declines in the dry season . <unk> predominates in the late wet and dry season , and diets are nutritionally poor in the mid @-@ dry season , when impala feed mostly on woody dicots . Another study showed that the <unk> proportion in the diet is much higher in bachelors and females than in territorial males . 
