2018 Duck Population Numbers | 2018-2019 Waterfowl Season Species-by-species breakdown, the USFWS Waterfowl Population Survey will help you prepare for the 2018-2019 duck hunting season © 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 Scaup PreviousNext 2018 Scaup Numbers2018: 3.989 million. -9% change from 20172017: 4.372 millionScaup are -20% under the long term average. Scaup 1955-2018 Estimated Breeding Populations [chart not available] * in millions