I photographed this using a Canon 6D with a Canon 100-400 mm. lens.
This was Photographed at Buena Vista Grasslands at Plover, Wisconsin.
These amazing birds put on a song and dance show that is amazing to attract a female to the booming grounds. to find out more about these birds in Wisconsin and what is being done to help continue their existence here is a helpful link. http://www4.uwsp.edu/wildlife/pchicken/index.aspx