Every spring Columbian Sharp-tailed Grouse gather on a lek, or communal breeding ground. At the lek males perform a unique dance, pointing their tails upward while bending low to the ground, stomping their feet and inflating their air sacs. Females will select a nest site with brushy cover and appropriate vegetation, where they will lay 9-12 light brown, speckled eggs in a shallow, lined depression. Females will raise one brood per year. Chicks are precocial and will leave the nest with the female shortly after hatching. By 1-2 weeks in age, chicks can make short flights and by about 12 weeks of age they are self-sufficient. These medium-sized birds eat mostly seeds, buds, forbs, and leaves, along with insects when available.