Grouse are birds in the order Galliformes and family Phasianidae, classified under the tribe Tetraonini. This classification is supported by mitochondrial DNA studies and recognized by organizations like the American Ornithologists’ Union.
These birds live in temperate and subarctic regions of the Northern Hemisphere, from pine forests to moorlands. Their range extends from 83°N in northern Greenland to 28°N in Texas.
