[Length 23 in. Wingspan 52 in.]

This Snowy Owl was photographed on the tundra along Gas Well Road in Barrow, Alaska, USA. Photo taken with a Nikkor 300mm ED f4.5 lens on Kodachrome 200 film. (Date: June 1989)

[Length 23 in. Wingspan 52 in.]

This captive Snowy Owl was photographed at Highland Wildlife Park, Kingussie, Scotland, Great Britain. Photo taken with a Nikkor 105mm EDAF-D f2.8 lens (EFL=157mm) on a Nikon D100 camera. (Date: June 20, 2004)

[Length 23 in. Wingspan 52 in.]

This captive Snowy Owl was photographed at the Rio Grande Valley Birding Festival, Harlingen, Texas, USA. Photo taken with a AF-S DX VR Zoom-Nikkor 18-200mm f/3.5-5.6G IF-ED [II] lens on a Nikon D3200 camera. (Date: November 8, 2014)

[Length 17.5 in. Wingspan 40 in.]

This Spotted Owl was photographed at Scheelite Canyon, Fort Huachuca, Sierra Vista, Arizona. Photo equipment unknown. (Date: August 10, 1995)

[Length 17.5 in. Wingspan 40 in.]

This Spotted Owl was photographed at Sierra Vista, AZ, USA. Photo taken with a Nikkor ED 300mm f4.5 lens on Ektachrome 200 film. (Date: May 1985)

[Length 16 in. Wingspan 42 in.]

This captive Barn Owl was photographed at an aviary in Lyndhurst, England, Great Britain. Photo taken with a Nikkor EDAF 180 f2.8 lens on Kodak Elitechrome 200 film. (Date: April 2002)

[Length 16 in. Wingspan 42 in.]

This captive Barn Owl was photographed at an aviary in Lyndhurst, England, Great Britain. Photo taken with a Nikkor EDAF 180 f2.8 lens on Kodak Elitechrome 200 film. (Date: April 2002)

[Length 6.75 in. Wingspan 12 in.]

This Ferruginous Pygmy-Owl was photographed at El Canelo Ranch, Raymondville, Texas, USA. Photo taken with a Nikkor 300mm EDAF-S f4 lens (EFL=450mm) on a Nikon D100 camera. (Date: March 25, 2004)