
Canon EOS 5DS R with Tamron 150-600 mm lens; 600 mm; ISO-1000; f/6.3; 1/2500 sec.
This page is for the Canvasback (Aythya valisineria). My first photographic evidence of the Canvasback was on December 24, 2021 at the Fort Worth Nature Preserve, Fort Worth, TX. When I took the picture, I could not tell what species of ducks were swimming that far down the water (about 700 yards) I just knew there were ducks there, figuring I would identify them once I had the picture on the computer. I was quite surprised when I reviewed my photographs and identified the species as these are the first Canvasbacks I have seen in the wild. At that distance, most photographs do not turn out well, so I was very happy with this result. The best photograph I have taken of the Canvasback to date (above) is the January 2, 2022 photograph at Fort Worth Nature Preserve, Fort Worth, TX. I like this one as the duck had just resurfaced after feeding on the bottom, as evidenced by all the mud covering his face.
The following photographs are the best representative images from different dates and locations than my species representative example.

Canon EOS 5DS R with Tamron 150-600 mm lens; 600 mm; ISO-1000; f/6.3; 1/3200 sec.

Canon EOS 5DS R with Tamron 150-600 mm lens; 600 mm; ISO-200; f/6.3; 1/800 sec.

Canon EOS 5DS R with Tamron 150-600 mm lens; 600 mm; ISO-1250; f/6.3; 1/1600 sec.

Canon EOS R5 with Canon 100-500 mm L-series lens with 1.4x Teleconverter; 700 mm; ISO-200; f/10; 1/800 sec. +0.3 exposure bias.

Canon EOS R5 with Canon 100-500 mm L-series lens with 1.4x Teleconverter; 700 mm; ISO-640; f/10; 1/800 sec.

Canon EOS R5 with Canon 100-500 mm L-series lens with 1.4x teleconverter; 700 mm; ISO-500; f/11; 1/800 sec.