Utah State University Extension
Although sage-grouse may eat only sagebrush during the winter, knowing that they need to eat other foods at other times of the year helps wildlife managers implement projects that will ensure a balanced diet. By knowing what a sage-grouse eats and when, we can determine what we need to do to maintain and improve populations and their habitats.
Dahlgren, David K.; Thacker, Eric T.; and Messer, Terry A., "What Does a Sage-Grouse Eat?" (2015). All Current Publications. Paper 779.