The Mallard is a medium-sized waterfowl. It can grow 65cm long with a wingspan close to one meter, and weigh just above 1.5kg. The Mallard feed mainly on vegetable matter, but can also eat snails, beetles, worms, etc. In populated areas, when their access to plant matter is poor, they also eat bread fed to them by humans. You find Mallards on the Northern Hemisphere across the globe, and also in New Zealand and Southern Australia. They thrive in both fresh- and salt-water, but prefer water depths less than one metre. The mottled brow is the female bird.