Angola, Botswana, Chad, Congo [The Democratic Republic of the] (B), Ethiopia, Kenya, Mozambique, Namibia, Niger, Nigeria, South Africa, Sudan, Tanzania [United Republic of], Zambia, Zimbabwe.
Vagrant to Cameroon, Ghana, Israel, Lesotho, Libyan Arab Jamahiriya, Malawi, Swaziland.
Sudan and Ethiopia to Namibia and South Africa.
 
Population
Estimated population is 110,000 - 260,000 (2010).
Status LC
Habitat loss through wetland destruction and degradation, changes in the flood regime, wetland reclamation for suburb and port development, disturbance from tourism, are the main threats.
For more information see BirdLife International Species Factsheet.
Food
Omnivorous. Stems, leaves and seeds of pondweeds, aquatic insects, crustaceans, tadpoles.