The Canvasback ("Aythya valisineria") is the largest of the North American diving ducks, that ranges from between long and weighs approximately, with a wingspan of.
It ranges from between long and weighs approximately, with a wingspan of. The Canvasback ("Aythya valisineria") is the largest of the North American diving ducks.
The Canvasback ("Aythya valisineria") is the largest of the North American diving ducks. It ranges from between long and weighs approximately, with a wingspan of.
The Canvasback ("Aythya valisineria") is the largest of the North American diving ducks. It ranges from between long and weighs approximately, with a wingspan of.