[Length 24 in. Wingspan 53 in.]

This Common Raven was photographed sitting on a nest on the cliffs of Attu Island, Alaska, USA. Photo taken with a 300mm f4.5 Nikkor ED lens on Ektachrome 200 film pushed to 400. (Date: May 1984)

[Length 24 in. Wingspan 53 in.]

This Common Raven was photographed at Rio Grande Village, Big Bend National Park, Texas, USA. Photo taken with a AF-S VR Zoom-Nikkor 70-300mm f/4.5-5.6G IF-ED lens (EFL=450mm) on a Nikon D200 camera. (Date: December 12, 2010)

[Length 24 in. Wingspan 53 in.]

This Common Raven was photographed at Rio Grande Village, Big Bend National Park, Texas, USA. Photo taken with a AF-S VR Zoom-Nikkor 70-300mm f/4.5-5.6G IF-ED lens (EFL=232mm) on a Nikon D200 camera. (Date: December 12, 2010)

[Length 24 in. Wingspan 53 in.]

This Common Raven was photographed at Yellowstone National Park, Wyoming, 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: June 16, 2016)

[Length 24 in. Wingspan 53 in.]

This Common Raven was photographed at Bryce Canyon National Park, 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 24, 2016)

[Length 18.5 in. Wingspan xx in.]

This Rook was photographed at Stonehenge, England, Great Britain. Photo taken with a Nikkor EDAF 300 f4.0 lens on Kodachrome 200 film. (Date: April 2002)

[Length 18.25 in. Wingspan xx in.]

These Rooks were photographed on the island of Kyushu, Japan. Photo taken with a Nikkor 300mm EDAF f4.0 lens on Kodachrome 200 film. (Date: January 1996)