This picture is from a Columbian sharp-tailed Grouse lek in northwest Colorado. In the spring the grouse population gathers on their leks or breeding grounds. As part of their mating ritual the males “dance” as a way to attract females. Most of the males in a population can be found on the lek and it gives biologists an opportunity to count them. The data can be analyzed to determine population trends at the local, state,…
