found: Beckhorn, Susan Williams. Moose eggs, or, why Moose has flat antlers, 2007(DLC)2007006471
found: ITIS search, July 10, 2007(Tetraoninae; Taxonomic rank: Subfamily; Synonym: Tetraonidae; Common name: Grouse; Kingdom: Animalia; Phylum: Chordata; Subphylum: Vertebrata; Class: Aves; Order: Galliformes; Family: Phasianidae)
found: Britannica, viewed July 29, 2022(grouse, any of a number of game birds in the family Tetraonidae (order Galliformes). In addition to species called grouse, the group includes several birds known by particular names, such as the capercaillie and prairie chicken and the ptarmigan.)
found: Merriam Webster, viewed July 29, 2022(grouse; plural: grouse or grouses; any of various chiefly ground-dwelling birds (family Tetraonidae) that are usually of reddish-brown or other protective color and have feathered legs and that include many important game birds)