2018 Waterfowl Population Survey Total populations were estimated at 41 million © Melinda Garner 2018 Duck Species Breakdown Select Species Mallard Gadwall American wigeon Green-winged teal Blue-winged teal Northern shoveler Northern pintail Redhead Canvasback Scaup Northern shoveler PreviousNext 2018 Northern shoveler Numbers2018: 4.208 million. -3% change from last year2017: 4.353 millionNorthern shoveler are +62% over the long term average. Northern shoveler 1955-2018 Estimated Breeding Populations [chart not available] * in millions