Gallinaceous birs are heavy-bodied ground-feeding domestic or game birds, including grouse, ptarmigans, turkeys, pheasants, quail, partridges, fowl, chachalacas, and curassows – all in the order Galliformes. This order contains four families: family Tetraonidae (including grouse and ptarmigan), family Meleagrididae (including turkeys), family Phasianidae (including quail, partridges, and pheasants), and the family Cracidae (including chachalacas). They are important as seed dispersers and predators in the ecosystems they inhabit and are often reared as game birds by humans for meat and egg consumption and for recreational hunting. All are skilled runners that can fly only a few hundred feet when escaping danger. Males of most species are more colorful than the females. Males often have elaborate courtship behaviors that include strutting, fluffing of tail or head feathers, and vocal sounds. They are mainly non-migratory birds well adapted to the winter climate.