[Length 16 in. Wingspan 25 in.]

This displaying male Lesser Prairie-Chicken was photographed at the West Lek Blind, Cimarron National Grasslands, Kansas, USA. Photo taken with a Nikkor 300mm EDAF-S VR f2.8 lens (EFL=450mm) on a Nikon D200 camera. (Date: May 7, 2006)

[Length 16 in. Wingspan 25 in.]

This male Lesser Prairie-Chicken was photographed at the West Lek Blind, Cimarron National Grasslands, Kansas, USA. Photo taken with a Nikkor 300mm EDAF-S VR f2.8 lens (EFL=450mm) on a Nikon D200 camera. (Date: May 7, 2006)

[Length 14 in. Wingspan 20 in.]

This Chukar was photographed at Antelope Island State Park, Ogden, Utah, USA. Photo taken with a AF-S VR Zoom-Nikkor 80-400mm f/4.5-5.6G IF-ED lens on a Nikon D7100 camera. (Date: June 20, 2016)

[Length 14 in. Wingspan 20 in.]

This Chukar was photographed at Antelope Island State Park, Ogden, Utah, USA. Photo taken with a AF-S VR Zoom-Nikkor 80-400mm f/4.5-5.6G IF-ED lens on a Nikon D7100 camera. (Date: June 20, 2016)

[Length 14 in. Wingspan 20 in.]

This Chukar was photographed at Antelope Island State Park, Ogden, Utah, USA. Photo taken with a AF-S VR Zoom-Nikkor 80-400mm f/4.5-5.6G IF-ED lens on a Nikon D7100 camera. (Date: June 20, 2016)

[Length 20 in. Wingspan 26 in.]

Dusky Grouse (formerly known as Blue Grouse) are residents of the Rocky Mountains and foothills of the western US and Canada. This "Southern Rockies" Dusky Grouse was photographed (after it emerged from underneath one of the cars in the parking lot!) at Yovimpa Point in Bryce Canyon National Park, Utah, USA. Photo taken with a 300mm f4.5 Nikkor ED lens on Kodachrome 64 film. (Date: August 1980)

[Length 20 in. Wingspan 26 in.]

Dusky Grouse (formerly known as Blue Grouse) are residents of the Rocky Mountains and foothills of the western US and Canada. This "Southern Rockies" Dusky Grouse was photographed at Dinosaur National Monument, Dinosaur, Colorado, USA. Photo taken with a AF-S VR Zoom-Nikkor 80-400mm f/4.5-5.6G IF-ED lens on a Nikon D7100 camera. (Date: September 3, 2015)

[Length 15.5 in. Wingspan 24 in.]

This Red Grouse was photographed at Lochindorb, Scotland, Great Britain. Photo taken with a Nikkor 300mm EDAF-S f4 lens (EFL=450mm) on a Nikon D100 camera. (Date: June 20, 2004)