[Length 18 in. Wingspan 44 in.]

This Black Skimmer was photographed at the tidal flats behind the SPI Convention Center, South Padre Island, Texas. Photo taken with a AF-S VR Nikkor 200-500mm f/5.6 IF-ED lens on a Nikon D7100 camera. (Date: May 07, 2018)

[Length 18 in. Wingspan 44 in.]

This Black Skimmer in flight was photographed at the South Padre Island Convention Center boardwalk, 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: December 28, 2018)

[Length 18 in. Wingspan 44 in.]

This Black Skimmer in flight was photographed near a traditional nesting site along the central coast of New Jersey, USA. Photo taken with a Nikkor 300mm ED f4.5 lens on Kodachrome 64 film. (Date: September 1984)

[Length 23 in. Wingspan 55 in.]

This Great Skua was photographed at Quendale, Mainland, Shetland, Scotland, Great Britain. Photo taken with a Nikkor 180mm EDAF-D f2.8 lens (EFL=270mm) on a Nikon D100 camera. (Date: June 2, 2004)

[Length 23 in. Wingspan 55 in.]

This Great Skua was photographed at Hermaness NNR, Haroldswick, Unst, Shetland, Scotland, Great Britain. Photo taken with a Nikkor 300mm EDAF-S f4 lens (EFL=450mm) on a Nikon D100 camera. (Date: June 4, 2004)

[Length 7.25 in. Wingspan 13 in.]

This Eurasian Skylark was photographed at Loch Spiggie, Mainland, Shetland, Scotland, Great Britain. Photo taken with a Nikkor 300mm EDAF-S f4 lens (EFL=450mm) on a Nikon D100 camera. (Date: June 2, 2004)

[Length 7.25 in. Wingspan 13 in.]

This Eurasian Skylark was photographed at Loch Spiggie, Mainland, Shetland, Scotland, Great Britain. Photo taken with a Nikkor 300mm EDAF-S f4 lens (EFL=450mm) on a Nikon D100 camera. (Date: June 2, 2004)

[Length 7.5 in. Wingspan xx in.]

This Oriental Skylark was photographed at the Nanhui Refuge, Nanhui (Shanghai), Shanghai, China. 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 06, 2017)

[Length 7.5 in. Wingspan xx in.]

This Oriental Skylark was photographed at the Nanhui Refuge, Nanhui (Shanghai), Shanghai, China. 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 06, 2017)