[Length 13 in. Wingspan 31 in.]

This winter plumaged Forster's Tern in flight was photographed at Cape May, New Jersey. Photo taken with a Nikkor 300mm ED f4.5 lens on Kodachrome 200 film. (Date: September 1983)

[Length 13 in. Wingspan 31 in.]

This Forster's Tern was photographed hunting at Brigantine NWR, New Jersey. Photo taken with a Nikkor 300mm EDAF f4.0 lens on Kodachrome 200 film. (Date: May 1984)

[Length 13 in. Wingspan 31 in.]

This Forster's Tern was photographed at Port Aransas Birding Center, Port Aransas, TX. Photo taken with a Nikkor 300mm EDAF-S f4 lens (EFL=450mm) on a Nikon D100 camera. (Date: March 23, 2004)

[Length 13 in. Wingspan 31 in.]

This Forster's Tern was photographed at Port Aransas Birding Center, Port Aransas, TX. Photo taken with a Nikkor 180mm EDAF-D f2.8 lens (EFL=270mm) on a Nikon D100 camera. (Date: March 23, 2004)

[Length 13 in. Wingspan 31 in.]

This Forster's Tern was photographed at French Town Road, Port Bolivar, TX. Photo taken with a Nikkor 300mm EDAF-S VR f2.8 lens + Nikkor TC20E II 2.0x Teleconverter (EFL=900mm) on a Nikon D200 camera. (Date: May 7, 2008)

[Length 14 in. Wingspan 34 in.]

These Gull-billed Terns performing courtship display were photographed at Brigantine NWR, New Jersey. Photo taken with a Celestron 1250mm f10.0 mirror lens on Ektachrome 800 film. (Date: May 1984)

[Length 14 in. Wingspan 34 in.]

This winter plumaged Gull-billed Tern was photographed at San Bernard NWR, Brazoria, TX. 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: January 16, 2009)

[Length 14 in. Wingspan 34 in.]

This winter plumaged Gull-billed Tern was photographed at San Bernard NWR, Brazoria, TX. 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: January 16, 2009)