Alan Murphy/ BIA / Sharp-tailed Grouse (Tympanuchus phasianellus) males fighting at lek in snow, Minnesota

Alan Murphy/ BIA / Sharp-tailed Grouse (Tympanuchus phasianellus) males fighting at lek in snow, Minnesota

Alan Murphy/ BIA / Sharp-tailed Grouse (Tympanuchus phasianellus) male displaying at lek in snow, Minnesota

Steve Gettle / Sharp-tailed Grouse (Tympanuchus phasianellus) male displaying at lek, Seney National Wildlife Refuge, Michigan

Todd Mintz / Sharp-tailed grouse (Tympanuchus phasianellus) in prairie grasses, Grasslands National Park, Saskatchewan, Canada, July.

Todd Mintz / Sharp-tailed grouse (Tympanuchus phasianellus) in prairie grasses, Grasslands National Park, Saskatchewan, Canada, July.

Todd Mintz / Sharp-tailed grouse (Tympanuchus phasianellus) in prairie grasses, Grasslands National Park, Saskatchewan, Canada, July.

David Tipling / Sharp-tailed Grouse (Tympanuchus phasianellus) displaying on lek at dawn in the Sandhills, Nebraska, USA, April.

Charlie Summers / Columbian Sharp-tailed Grouse (Tympanuchus phasianellus) female, Custer State Park, South Dakota prairie, USA, October.

David Tipling / Sharp-tailed Grouse (Tympanuchus phasianellus) displaying on lek at dawn, Sandhills, Nebraska, USA April

Gerrit Vyn / Adult male Sharp-tailed Grouse (Tympanuchus phasianellus) making an aggressive charge on a lek. Ft. Pierre National Grassland, South Dakota. USA, April.

Gerrit Vyn / Adult male Sharp-tailed Grouse (Tympanuchus phasianellus) displaying on a lek. Ft. Pierre National Grassland, South Dakota, USA, April.

Shattil & Rozinski / Columbian sharp tailed grouse {Tympanuchus phasianellus columbianus} USA

Shattil & Rozinski / Sharp tailed grouse {Tympanuchus phasianellus} males fighting on lek, Colorado, USA

Shattil & Rozinski / Columbian sharp tailed grouse {Tympanuchus phasianellus} male displaying at lek, USA

Shattil & Rozinski / Columbian sharp tailed grouse {Tympanuchus phasianellus} male displaying at lek, USA

Shattil & Rozinski / Columbian sharp tailed grouse {Tympanuchus phasianellus} males fighting at lek, USA

Jeff Vanuga / Sharp tailed grouse {Tympanuchus phasianellus} males performing mating display on spring dancing ground. Wyoming, USA.

Jeff Vanuga / Male Sharp tailed grouse {Tympanuchus phasianellus} performing mating display on spring dancing ground, Wyoming, USA.

Jeff Vanuga / Male Sharp tailed grouse {Tympanuchus phasianellus} performing mating display on spring dancing ground. Wyoming, USA.

John Cancalosi / Sharp tailed grouse {Typanuchus phasianellus} male at lek, Colorado, USA

John Cancalosi / Sharp tailed grouse {Typanuchus phasianellus} male at lek. Colorado, USA

John Cancalosi / Sharp tailed grouse {Typanuchus phasianellus} male displaying at lek to attract females. Colorado, USA

John Cancalosi / Sharp tailed grouse {Typanuchus phasianellus} male displaying at lek. Colorado, USA

Michael Durham / Columbia Sharp-tailed Grouse (Tympanuchus phasianellus columbianus) erupting into flight from tallgrass, Zumwalt Prairie Preserve, northeast Oregon

Mark Raycroft / Sharp-tailed Grouse (Tympanuchus phasianellus) in courtship display, North America

Alan Murphy/ BIA / Sharp-tailed Grouse (Tympanuchus phasianellus) male displaying at lek in snow, Minnesota

Alan Murphy/ BIA / Sharp-tailed Grouse (Tympanuchus phasianellus) male displaying at lek in snow, Minnesota

Alan Murphy/ BIA / Sharp-tailed Grouse (Tympanuchus phasianellus) in snow, Minnesota

Alan Murphy/ BIA / Sharp-tailed Grouse (Tympanuchus phasianellus) male displaying at lek in snow, Minnesota

Alan Murphy/ BIA / Sharp-tailed Grouse (Tympanuchus phasianellus) in snow, Minnesota

Alan Murphy/ BIA / Sharp-tailed Grouse (Tympanuchus phasianellus) in snow, Minnesota

Alan Murphy/ BIA / Sharp-tailed Grouse (Tympanuchus phasianellus) males displaying at lek in snow, Minnesota

Nick Saunders / Sharp-tailed Grouse (Tympanuchus phasianellus) male in courtship display, Saskatchewan, Canada

Glenn Bartley / Sharp-tailed Grouse (Tympanuchus phasianellus), Saskatchewan, Canada

Glenn Bartley / Sharp-tailed Grouse (Tympanuchus phasianellus), Saskatchewan, Canada

Steve Gettle / Sharp-tailed Grouse (Tympanuchus phasianellus) male, Seney National Wildlife Refuge, Michigan

Steve Gettle / Sharp-tailed Grouse (Tympanuchus phasianellus) male displaying at lek, Seney National Wildlife Refuge, Michigan

Steve Gettle / Sharp-tailed Grouse (Tympanuchus phasianellus) male displaying at lek, Seney National Wildlife Refuge, Michigan

Steve Gettle / Sharp-tailed Grouse (Tympanuchus phasianellus) male displaying at lek, Seney National Wildlife Refuge, Michigan

Steve Gettle / Sharp-tailed Grouse (Tympanuchus phasianellus) male, Seney National Wildlife Refuge, Michigan

Steve Gettle / Sharp-tailed Grouse (Tympanuchus phasianellus) male, Seney National Wildlife Refuge, Michigan

Donald M. Jones / Sharp-tailed Grouse (Tympanuchus phasianellus) male flying, eastern Montana

Donald M. Jones / Sharp-tailed Grouse (Tympanuchus phasianellus) male, central Montana

Donald M. Jones / Sharp-tailed Grouse (Tympanuchus phasianellus) males fighting on lek, eastern Montana

Donald M. Jones / Sharp-tailed Grouse (Tympanuchus phasianellus) males displaying on lek, eastern Montana

Donald M. Jones / Sharp-tailed Grouse (Tympanuchus phasianellus) female on prairie, eastern Montana

Donald M. Jones / Sharp-tailed Grouse (Tympanuchus phasianellus) male dancing on lek, eastern Montana