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A canvasback ducK can run/fly about 70 Miles Per Hour:)
The Canvasback duck
People :( and foxes. Rats also take to their ducklings but a fully grown duck can fight off a rat.
Yes, a whiteback is another name for the canvasback. This is a species of duck found in North America, and has white-gray feathers on its back.
The Peregrine Falcon is much faster. He is a predator, and can be taught to hunt for and return to a human trainer .