[Length 16 in. Wingspan 40 in.]

This Black-headed Gull was photographed at Carrbridge, Scotland, Great Britain. Photo taken with a Nikkor 180mm EDAF-D f2.8 lens (EFL=270mm) on a Nikon D100 camera. (Date: June 20, 2004)

[Length 16 in. Wingspan 40 in.]

This winter plumaged Black-headed Gull was photographed in a city park on Lake Geneva near Montreaux, Switzerland. Photo taken with a Nikkor 300mm ED f4.5 lens on Kodachrome 64 film. (Date: September 1984)

[Length 16 in. Wingspan 40 in.]

This winter plumaged Black-headed Gull was photographed at a dock on Lake Geneva near Montreaux, Switzerland. Photo taken with a Nikkor 300mm ED f4.5 lens on Kodachrome 64 film. (Date: September 1984)

[Length 16 in. Wingspan 40 in.]

This Black-headed Gull in flight was photographed at Kensington Park, London, England. Photo taken with a Nikkor EDAF 300 f4.0 lens on Kodachrome 200 film. (Date: April 2002)

[Length 16 in. Wingspan 40 in.]

This Black-headed Gull was photographed at Cley Marshes RSPB Reserve, Norfolk, England. Photo taken with a Nikkor EDAF 300 f4.0 lens on Kodak Elitechrome 200 film. (Date: May 2002)

[Length 16 in. Wingspan 40 in.]

This winter plumaged Black-headed Gull was photographed at a dock on Lake Geneva near Montreaux, Switzerland. Photo taken with a Nikkor 300mm ED f4.5 lens on Kodachrome 64 film. (Date: September 1984)

[Length 16 in. Wingspan 40 in.]

This Black-headed Gull was photographed at Loch of Funzie RSPB Reserve, Funzie, Fetlar, Shetland, Scotland, Great Britain. Photo taken with a Nikkor 300mm EDAF-S f4 lens (EFL=450mm) on a Nikon D100 camera. (Date: June 7, 2004)

[Length 16 in. Wingspan 40 in.]

This Black-headed Gull was photographed at Carrbridge, 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)