Scientific name: Anas undulata
These are mallard-sized mainly grey ducks with a darker head and bright yellow bill. The wings are whitish below, and from above show a white-bordered green speculum.
Found mainly in South Africa, where it is very common. It also occurs in patches of Botswana, Namibia and Zimbabwe, although it is hard to find in these areas. It generally prefers still waters of streams, lakes, swamps, pans, swamps, marshes and sewerage ponds. It avoids saline or highly acidic water and is largely absent from fast-flowing waters.
It feeds mainly on plants, supplemented with animals (which form approximately 17% of its diet). However the juveniles have a diet dominated by animals, eating more plants as they get older.
