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. Sexes are similar, and juveniles are slightly duller than adults. The north-eastern race is darker and has a brighter bill and blue speculum.
Habitat and Distribution
It is a bird of freshwater habitats in fairly open country which is an abundant resident breeder in southern and eastern Africa. This duck is not migratory, but will wander in the dry season to find suitable waters. It is highly gregarious outside the breeding season and forms large flocks.
It feeds by dabbling for plant food mainly in the evening or at night.
It nests on the ground in dense vegetation near water. The clutch numbers between six and twelve eggs.
Calls and Songs
The male has a teal-like whistle, whereas the female has a mallard-like quack.