Herbivore, feeding mainly on plants. It can also feed on insect larvae, snails and shellfish.
Up to 20 years in the wild.
Mating and egg laying takes place between April and May, starting at 1 year of age. The female lays on average 7 to 10 eggs at a rate of 1 per day which she incubates for approximately 28 days. The duckling’s first flight takes place approximately 50 days later.
Eggs and ducklings can be the prey of fox and certain birds like crow, seagulls and birds of prey.