Approximate present-day North American distribution for all galliforms native to the continental United States (Table 1). We use general species groupings for each panel to improve clarity, including (A) ptarmigan (Lagopus spp.), (B) forest grouse (Bonasa umbellus, Falcipennis canadensis, Dendragapus spp.), (C) prairie grouse (Centrocercus spp., Tympanuchus spp.), (D) Wild Turkey and Plain Chachalaca, (E) Callipepla spp. quail, and (F) all other quail (Colinus virginianus, Cyrtonyx montezumae, and Oreortyx pictus). Distribution data were obtained from Bird Life International (datazone.birdlife.org).