[Length 46 in. Wingspan 72 in.]

This Great Blue Heron was photographed at the SPI Convention Center gardens, South Padre Island, Texas. 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: May 07, 2018)

[Length 46 in. Wingspan 72 in.]

This Great White Heron (white morph of the Great Blue Heron) was photographed at Eco Pond in Everglades National Park, Florida, USA. Photo taken with a Nikkor 300mm EDAF f4.0 lens on Kodachrome 200 film. (Date: February 1983)

[Length 46 in. Wingspan 72 in.]

This Wurdemann's Heron (an intermediate color morph of the Great Blue Heron) was photographed in the Florida Keys, USA. Photo taken with a Nikkor 300mm ED f4.5 lens on Kodachrome 64 film. (Date: June 1983)

[Length 18 in. Wingspan 26 in.]

Green Herons are common birds in swamps and marshes throughout much of the US. This one was photographed hunting from a raised perch in the reeds along the Anhinga Trail in Everglades National Park, Florida, USA. (Date: January 1991)

[Length 18 in. Wingspan 26 in.]

This Green Heron was photographed at Eco Pond in Everglades National Park, Florida, USA. Photo taken with a Nikkor 300mm EDAF f4.0 lens on Kodachrome 200 film. (Date: February 1983)

[Length 18 in. Wingspan 26 in.]

This Green Heron was photographed along the Anhinga Trail in Everglades National Park, Florida, USA. Photo taken with a Nikkor 300mm EDAF f4.0 lens on Kodachrome 200 film. (Date: January 1991)

[Length 18 in. Wingspan 26 in.]

This Green Heron was photographed at French Town Road, Port Bolivar, Texas, USA. Photo taken with a Nikkor 300mm EDAF-S VR f2.8 lens + Nikkor TC14E II 1.4x Teleconverter (EFL=630mm) on a Nikon D200 camera. (Date: May 6, 2008)

[Length 18 in. Wingspan 26 in.]

This Green Heron was photographed at TOS Sabine Woods Sanctuary, Texas, USA. Photo taken with a AF-S VR Zoom-Nikkor 70-300mm f/4.5-5.6G IF-ED lens (EFL=345mm) on a Nikon D200 camera. (Date: April 22, 2010)

[Length 18 in. Wingspan 26 in.]

This Green Heron was photographed at the Convention Center Boardwalk, South Padre Island, 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 D300 camera. (Date: June 13, 2012)