Tetraoninae, commonly known as grouse, are medium to large game birds found primarily in temperate and subarctic regions. They exhibit cryptic plumage for camouflage and have strong, feathered legs adapted for walking in snow. Grouse perform unique courtship displays, often involving elaborate dances and vocalizations, and are vital for seed dispersal in their habitats.

The Tetraoninae, commonly known as grouse, are native to the Northern Hemisphere. They are predominantly found across North America and Eurasia, including regions such as Canada, the United States, Scandinavia, Russia, and parts of Central Asia.

Grouse typically inhabit temperate and subarctic regions, often characterized by cold climates. They prefer environments such as boreal forests, tundra, heathlands, and open woodlands. The climate in these areas can be harsh, with long, cold winters and short, mild summers.

Grouse are well adapted to living in areas with dense vegetation and cover, which provides them protection from predators and harsh weather conditions. They occupy a niche as ground-dwelling birds, feeding on a variety of plant materials, including leaves, buds, and seeds, as well as insects during the breeding season. Their role in the ecosystem includes seed dispersal and serving as prey for larger predators.