Normally late to start south, canvasbacks migrate in lines and irregular
In feeding areas, compact flocks fly in indefinite formations. Their
wingbeat is rapid and noisy; their speed is the swiftest of all our
Feeding behavior is highly variable. In some areas they feed at night
and spend the day rafted up in open waters; in other areas they feed
inshore mornings and evenings.
On the water, body size and head shape distinguish them from scaups and
Drakes croak, peep, and growl; hens have a mallard-like quack.