Mallard - The Australian Museum
How much yard space do pet ducks need? — K&H Pet Products
Mallard Duck
Bread is off the menu – so what should we feed the ducks now?, Birds
10 Facts About Ducks - FOUR PAWS International - Animal Welfare Organisation
Duck Bird Facts - A-Z Animals
Why Do Ducks Wag Their Tails? 7 Reasons + Duck Facts
What to feed pet or backyard ducks to maximize their health and longevity - Tyrant Farms
What to feed ducks – according to science - Background - Utrecht University
Interactive Science: Ducks!
Mallards