Covers more than 250 bird species of the Rocky Mountain states and provinces. This region is home to fascinating species such as Trumpeter Swan, Mountain Plover, White-tailed Ptarmigan, Sage Grouse, Sharp-tailed Grouse, Greater- and Lesser Prairie Chicken, Williamson's Sapsucker, Three-toed Woodpecker, Cordilleran Flycatcher, and many more.