[Length 23 in. Wingspan 35 in.]

This American Black Duck was photographed at the Shark River Marina in Belmar, New Jersey. Photo taken with a Nikkor 300mm ED f4.5 lens on Ektachrome 200 film pushed to 800. (Date: February 1981)

[Length 23 in. Wingspan 35 in.]

This American Black Duck in flight was photographed at Sandy Hook, New Jersey. Photo taken with a Nikkor 300mm EDAF f4.0 lens on Kodachrome 200 film. (Date: November 1989)

[Length 23 in. Wingspan 35 in.]

This American Black Duck was photographed on Nantucket Island, Rhode Island. Photo taken with a Nikkor 300mm ED f4.5 lens on Kodachrome 64 film. (Date: August 1983)

[Length 23 in. Wingspan 35 in.]

This American Black Duck was photographed on Nantucket Island, Rhode Island. Photo taken with a Nikkor 300mm ED f4.5 lens on Kodachrome 64 film. (Date: August 1983)

[Length 21 in. Wingspan 30 in.]

This pair Black-bellied Whistling-Ducks was photographed at Port Aransas Birding Center, Port Aransas, TX. Photo taken with a Nikkor 70-200mm EDAF-S VR f2.8 lens (EFL=285mm) on a Nikon D100 camera. (Date: March 4, 2006)

[Length 21 in. Wingspan 30 in.]

This Black-bellied Whistling-Duck was photographed along a resaca in suburban Brownsville, Texas. Photo taken with a Nikkor 300mm EDAF f4.0 lens on Kodachrome 200 film. (Date: April 2000)

[Length 21 in. Wingspan 30 in.]

This pair of Black-bellied Whistling-Ducks was photographed at a nestbox near Rosenberg, Texas. Photo taken with a Nikkor 300mm EDAF f4.0 lens on Kodachrome 200 film. (Date: May 2000)

[Length 21 in. Wingspan 30 in.]

This immature Black-bellied Whistling-Duck was photographed at Estero Llano Grande State Park, TX. Photo taken with a Nikkor 300mm EDAF-S VR f2.8 lens (EFL=450mm) on a Nikon D200 camera. (Date: August 7, 2006)