Like her male companion, the hen canvasback shows ... Unlike pintails, widgeon, and green-wing teal, canvasback ducks are almost exclusively a bird of North America, found in all four flyways.

Male Mallards have green heads and yellow beaks, while females have subtler orange beaks. You won't notice any blue in the blue-winged teal's wings until this small dabbling duck takes flight.

Green-winged teal is the smallest North American dabbling duck at just over 12 inches ... of the yucca along with throngs of scaup. The male scaup is dark at both ends and white in the middle ...