https://www.usgs.gov/publications/weights-wild-mallard-anas-platyrhynchos-gadwall-a-strepera-and-blue-winged-teal-a
During 1976-81 we weighed several thousands of wild Mallard, Gadwall, and Blue-winged Teal in central North Dakota to examine duckling growth patterns, adult...
anas platyrhynchosweightswildmallardgadwall