[Length 13.5 in. Wingspan 33 in.]

Bonaparte's Gulls breed throughout much of Canada and Alaska. They winter along both coasts of North America. This one, in drab winter plumage, was photographed at Padre Island National Seashore, Texas, USA. Photo taken with a Nikkor 300mm ED f4.5 lens on Kodachrome 200. (Date: January 1989)

[Length 13.5 in. Wingspan 33 in.]

This winter plumaged Bonaparte's Gull was photographed flying over Potter Point Marsh near Anchorage, Alaska, USA. Photo taken with a Nikkor 300mm ED f4.5 lens on Kodachrome 200 film. (Date: April 1987)

[Length 13.5 in. Wingspan 33 in.]

This winter plumaged Bonaparte's Gull was photographed flying over Potter Point Marsh near Anchorage, Alaska, USA. Photo taken with a Nikkor 300mm ED f4.5 lens on Kodachrome 200 film. (Date: April 1987)

[Length 13.5 in. Wingspan 33 in.]

This breeding plumaged Bonaparte's Gull was photographed at the Cape May Meadows in New Jersey, USA. Photo taken with a Nikkor 300mm EDAF f4.0 lens on Kodachrome 200 film. (Date: April 1988)

[Length 13.5 in. Wingspan 33 in.]

This Bonaparte's Gull was photographed at Port Aransas, Texas, USA. Photo taken with a AF-S VR Nikkor 300mm f/2.8G IF-ED lens + Nikkor TC17E II 1.7x Teleconverter (EFL=750mm) on a Nikon D300 camera. (Date: February 17, 2011)

[Length 13.5 in. Wingspan 33 in.]

This Bonaparte's Gull was photographed at Land of the Loon Resort, Anglin Lake, Saskatchewan, Canada. 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 21, 2018)

[Length 21 in. Wingspan 54 in.]

This California Gull 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 21 in. Wingspan 54 in.]

This California Gull was photographed at a small park in southern New York, USA. Photo taken with a Nikkor 300mm ED f4.5 lens on Kodachrome 64 film. (Date: November 1979)