CentralNotice From Wikipedia, the free encyclopedia Jump to: navigation , search For other uses, see Grouse (disambiguation) . Grouse Temporal range: Early Pliocene to recent Male sage grouse Centrocercus urophasianus Scientific classification Kingdom: Animalia Phylum: Chordata Class: Aves Subclass: Neornithes Infraclass: Galloanserae Order: Galliformes Family: Phasianidae Subfamily: Tetraoninae Vigors , 1825 Genera Bonasa Falcipennis Centrocercus Dendragapus Lagopus Tetrao Tetrastes Tympanuchus and see text Synonyms Tetraonidae Vigors, 1825 Grouse / ˈ ɡ r aʊ s / are a group of birds from the order Galliformes , in the family Phasianidae . Grouse are frequently assigned to the subfamily Tetraoninae (sometimes Tetraonidae), a classification supported by mitochondrial DNA sequence studies, [1] an...