[Length 23 in. Wingspan 35 in.]

This Mexican Duck was photographed at Sabal Palms Sanctuary, Brownsville, 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 D7000 camera. (Date: May 26, 2011)

[Length 23 in. Wingspan 35 in.]

This pair of Mexican Ducks were photographed along the Rio Grande River at Candelaria, Texas, USA. Photo taken with a Nikkor EDAF 300 f4.0 lens on Kodachrome 200 film. (Date: June 2000)

[Length 22 in. Wingspan 30 in.]

This Mottled Duck was photographed at the SPI 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 D200 camera. (Date: October 27, 2010)

[Length 22 in. Wingspan 30 in.]

This Mottled Duck was photographed at Bolivar Peninsula, Texas, USA. Photo taken with a Nikkor 70-200mm EDAF-S VR f2.8 lens + Nikkor TC14E II 1.4x Teleconverter (EFL=360mm) on a Nikon D100 camera. (Date: May 9, 2006)

[Length 22 in. Wingspan 30 in.]

This Mottled Duck was photographed at the Audubon Sabal Palms Sanctuary, Brownsville, 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 D200 camera. (Date: May 8, 2009)

[Length 22 in. Wingspan 30 in.]

This Mottled Duck and ducklings 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=202mm) on a Nikon D300 camera. (Date: April 22, 2010)

[Length 22 in. Wingspan 30 in.]

This female Mottled Duck was photographed at the SPI Convention Center gardens, South Padre Island, Texas, 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: April 22, 2016)

[Length 22 in. Wingspan 30 in.]

This Mottled Duck was photographed at Estero Llano Grande State Park, Weslaco, Texas, 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: December 5, 2016)