Tetrao

Tetrao Temporal range: Early Pliocene to recent
Western capercaillie (Tetrao urogallus)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Galliformes
Family:	Phasianidae
Tribe:	Tetraonini
Genus:	Tetrao Linnaeus, 1758
Type species
Tetrao urogallus Linnaeus, 1758
Species
Tetrao urogalloides Tetrao urogallus

Tetrao is a genus of birds in the grouse subfamily known as capercaillies. They are some of the largest living grouse. Feathers from the bird were used to create the characteristic hat of the bersaglieri, an Italian ace infantry formation.