A common migrant and wintering species in estuaries and salt-marsh ponds from October to May. The back of the Canvasback is lighter in color and the head is flatter than that of the Redhead. Sexes are different.
The upper left bird is a female.
Collected By: Brent M Morgan
Locality: Neabsco, VA
Catalog ID: 277188
The bird on the lower right is a male.
Collected By: Edward J Brown
Locality: Washington, DC
Catalog ID: 220369