Dusky grouse (blue grouse) (Dendragapus obscurus) hen, Glacier National Park, Montana, United States of America, North America

Dusky grouse (blue grouse) (Dendragapus obscurus) hen, United States of America, North AmericaUSA

Male dusky grouse (blue grouse) (Dendragapus obscurus) displaying, Yellowstone National Park, Wyoming, United States of America, North America

Blue grouse (Dendragapus obscurus) hen, Waterton Lakes National Park, Alberta, Canada, North America

Dusky grouse (blue grouse) (Dendragapus obscurus) hen, Banff National Park, UNESCO World Heritage Site, Alberta, Canada, North America

An adult male dusky grouse (Dendragapus obscurus), displaying in Yellowstone National Park, Wyoming, United States of America, North America

Immature blue grouse (Dendragapus obscurus), Waterton Lakes National Park, Alberta, Canada, North America

An adult female dusky grouse (Dendragapus obscurus), displaying in Yellowstone National Park, Wyoming, United States of America, North America